TV series
A tangled web of mystery. Classic 'whodunit' suspense.
Dr. Mark Sloan is a good-natured, offbeat physician who is called upon to solve murders.
Streaming, rental and purchase options
Checked Jul 22, 2026
Diagnosis: Murder is available to stream on Philo and Pluto TV in United States. Use the direct links below to open the provider.
Dr. Mark Sloan is a good-natured, offbeat physician who is called upon to solve murders.
Choose an episode, then use the watch options above for the show.
Episode 1
Dr. Sloan is under suspicion after his tax preparer is killed with Mark spotted 'hovering' over the body.
Directed by Lou AntonioWritten by Lee Goldberg, William RabkinGuest stars Craig Wasson, Kelly Mullis, Sam Anderson, Tony Nittoli, Robin Riker, Frank Birney, Gary Kasper, Elkin Antoniou
Episode 2
Suspicion is cast on Norman Briggs after the chairman of a philanthropical medical group of which Norman is a part, is murdered. Steve and Mark attend the funeral to nail the culprit, who promptly falls over dead.
Directed by Alan MyersonWritten by Gerry ConwayGuest stars Michelle Phillips, Ray Abruzzo, William Allen Young, Khrystyne Haje, Dakin Matthews, Lisa Chess, Tim Haldeman, Christopher Maher
Episode 3
Two women involved in a love triangle plot to murder a man, take his millions, and leave the country. Dr. Sloan investigates after his friend's mysterious disappearence.
Directed by Roy Campanella IIWritten by Joyce BurdittGuest stars Ben Masters, Janet Julian, Sally Kellerman, Raymond O'Connor, Victoria Jackson, Tim Bagley, Michael Hagiwara, Annie O'Donnell
Episode 4
Dr. Sloan's birthday is less than festive when he discovers the body of a prominent divorce lawyer in the Hospital pharmacy. When Steve arrives, the body is nowhere to be found. Mark and Jack work feverishly to find the body, find the culprit, and lead a tour of potential investors all at the same time.
Directed by Vincent McEveetyWritten by Dan WilcoxGuest stars Bill Macy, Peter Murnik, Ken Swofford, Debra Jo Rupp, Jeff Kaake, Dierk Torsek, David Knell, Loyda Ramos
Episode 5
A famous actress, a patient at Community General, is implicated in the murder of one of her four ex-husbands. Against everyone's advice, Mark believes in her innocence and sets out to prove it.
Directed by Christian I. Nyby IIWritten by Robin Bernheim BurgerGuest stars Morgan Fairchild, Heidi Kling, David Naughton, Sal Viscuso, Gerrit Graham, Betty Carvalho, Will MacMillan, Eva Loseth
Episode 6
A cantankerous patient at Community General is given a double injection of his medication, eventually leading to his death. Jack suspects a doctor he's had a grudge against for a long time. Despite Mark's objections, Jack sets out to prove his ""enemy"" is the killer.
Directed by Richard ComptonWritten by Richard CollinsGuest stars Nicole Sullivan, Ken Kercheval, Wendy Phillips, Amy Steel, Christine Belford, John Rubinstein, David Selberg, David Kagen
Episode 7
At Jack's request, Mark operates on a Godfather-like mobster, Albert Bartell... and faces retribution from the man's son when Albert dies suddenly.
Directed by Christian I. Nyby IIWritten by John WirthGuest stars Jennifer Hetrick, Abe Vigoda, Alice Ghostley, Mark Rolston, Anthony Russell, Tony Colitti, Susan Blommaert, Sonia Jackson
Episode 8
Jack and Steve vie for a young woman's affections as she leads them in an investigation of a PI's death.
Directed by Peter EllisWritten by Brad KernGuest stars Glynis Barber, Daphne Ashbrook, Stephen Nichols, Kurt Fuller, Richard Minchenberg, Dean Butler, Marcus Smythe, Marla Frees
Episode 9
A plastic surgeon dies due to an overdose of laughing gas... with no shortage of suspects. Mark campaigns furiously to exonerate Bonnie Valin, the victim's wife, while Steve makes a solid case against her. Meanwhile, Amanda's new electronic checking service is less than effective.
Directed by Christian I. Nyby IIWritten by Lee Goldberg, William RabkinGuest stars Pernell Roberts, Jamie Luner, Michael Lowry, Carey van Dyke, Carey van Dyke, Martha Thompson, David A. Kimball, Deena Freeman
Episode 10
Realizing that he's been duped, Mark goes all out to thwart the murderer's plans. Amanda and Jack go after Wallace Sterling, the crooked financier and art lover by selling a forged painting of a can of Cream of Celery soup.
Directed by Christian I. Nyby IIWritten by Lee Goldberg, William RabkinGuest stars Stephen Root, Michael Lowry, Lenny Wolpe, Dyan Cannon, Matthew Glave, Crystal Chappell, Harley Venton, Jack Blessing
Episode 11
The body of a dead real estate agent is found in the walk-in closet of Mark's sister's new house. Mark and Steve have to work around Dora Sloan's annoying habits while investigating the murder.
Directed by Christopher HiblerWritten by Dan WilcoxGuest stars Betty White, Susan Gibney, Joel Polis, Kari Lizer, John Walter Davis, Sara Peery, Jann Karam, Robert Crow
Episode 12
The newly crowned boxing champion is found murdered shortly after the bout. Jack and Amanda investigate the deceased's former trainer, his opponent, and his opponent's manager to find a way through a web of lies and deceit.
Directed by Christopher HiblerWritten by Travis FineGuest stars Steven Williams, Richard Brooks, Stanley Kamel, David Labiosa, Erik King, John Cassini, Bret Anthony, Bree Walker
Episode 13
Mark has some unorthodox theories when several dead bodies are found drained of blood with puncture marks on their neck.
Directed by Lee PhilipsWritten by Michael GleasonGuest stars Julie Carmen, Tim Dunigan, Phil Morris, Andrew Williams, William Converse-Roberts, Bill Mondy
Episode 14
When an unpopular actor on a hot new medical drama (being filmed at Community General) suddenly dies, Mark suspects everyone from the writer to other cast members.
Directed by Christopher HiblerWritten by Lee Goldberg, William RabkinGuest stars Diedrich Bader, Ian Ogilvy, Melora Hardin, Beau Gravitte, Denise Crosby, Carlos Lacámara, John Apicella, Rhonda Reynolds
Episode 15
A rash of murders made to look like suicide leads to a dating service and its beautiful customers.
Directed by Michael SchultzWritten by Dan WilcoxGuest stars Talia Balsam, Anthony Addabbo, Renée Coleman, Rebecca Chambers, Ron Recasner, Steve Vaught, Lois de Banzie, Mary-Pat Green
Episode 16
One of Steve's old ""collars"" gets out of prison and comes looking for revenge.
Directed by Burt BrinckerhoffWritten by Joyce BurdittGuest stars Finn Carter, Carolyn Lowery, Pepe Serna, Jack Coleman, Rob Steinberg, Bart Johnson
Episode 17
Dr. Sloan investigates the murder of an antagonistic pro volleyball player. Steve searches for an alleged stalker while Amanda and Jack keep an eye on her teammates, none of whom are particularly upset over her death.
Directed by Peter EllisWritten by Gerry ConwayGuest stars Bobby Hosea, Yvette Nipar, Joel Brooks, Alex Datcher, Sam Sorbo, Nancy Everhard, Jonathan Chapin
Episode 18
IRS Agent Gretchen McCord returns when her lifeguard nephew is accused of murder.
Directed by Christian I. Nyby IIWritten by Lee Goldberg, William RabkinGuest stars Sarah Buxton, Holland Taylor, Janet Gunn, Robert Miranda, Morgan H. Margolis, James Gleason, Sam J. Jones, Jason Court
Episode 19
After Steve's night school law teacher is nearly run down in the parking lot, he and a paralegal investigate shady dealings in their law firm.
Directed by Leo PennWritten by Michael GleasonGuest stars Kenneth Mars, Mitchell Whitfield, Leah Remini, Keith Coogan, Mark Moses, Vic Polizos, Lorna Scott, Cliff DeYoung
Episode 20
When Amanda's friend Angela is kidnapped immediately after giving birth to quadruplets, Amanda feigns pregnancy and goes undercover at an adoption agency to locate Angela. Jack and Dr. Sloan try to care for the babies.
Directed by Christian I. Nyby IIWritten by Joyce BurdittGuest stars Dwight Schultz, Bo Jackson, Kim Johnston Ulrich, Robin McKee, Boyd Kestner, Lori Pendergast
Episode 21
Amanda wins a guest role on The Young and the Restless and walks right into a murder.
Directed by Christian I. Nyby IIWritten by Michael GleasonGuest stars Doug Davidson, Lauralee Bell, Eric Braeden, Melody Thomas Scott, Jeanne Cooper, J. Eddie Peck, Kristoff St. John, Heather Tom
Episode 22
The death of a popular musician raises suspicious questions. The musicians' pregnant wife, who claims to be carrying an alien's child, complicates matters.
Directed by Christopher HiblerWritten by Richard CollinsGuest stars Michelle Burke, Vincent Ventresca, Jason Carter, Robert Gossett, Michael Watson, Bryn Erin, Jacqueline Obradors, Doug Hutchison
Episode information updated Jul 24, 2026
Dick Van DykeMark Sloan
Victoria RowellAmanda Bentley-Livingston
Charlie SchlatterJesse Travis
Scott BaioJack Stewart
Barry Van DykeSteve Sloan
Michael TucciNorman Briggs
Delores HallDelores Mitchell
Dan GilvezanKent Beaudine
CBSUnited States
Fred Silverman CompanyUnited States
Dean Hargrove ProductionsUnited States
Viacom ProductionsUnited StatesMore shows like Diagnosis: Murder.
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