TV series
Kill or cure.
Doctor Joseph O'Loughlin a man who appears to have the perfect life and a successful career as a clinical psychologist. But nothing can be taken for granted, even the most flawless existence is only a loose thread away from unravelling.
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Checked Jul 22, 2026
Doctor Joseph O'Loughlin a man who appears to have the perfect life and a successful career as a clinical psychologist. But nothing can be taken for granted, even the most flawless existence is only a loose thread away from unravelling.
Cast, crew and production details
Aidan TurnerJoe O'Loughlin
Shaun ParkesDI Vince Ruiz
Imogen DainesDetective Wallis
Camilla BeeputJulianne
Anjli MohindraDS Riya Devi
Tara LeeCatherine McCain
Bobby SchofieldBobby Moran
Tom McKayDJ
ITV1United Kingdom
World ProductionsUnited KingdomWatch options above are for the show and may vary by season or episode.
Episode 1
When successful psychologist Joe O'Loughlin is asked by the police to assist in the case of a murdered young woman, ghosts from his past begin to resurface.
Directed by James StrongWritten by Peter BerryGuest stars Richie Bratby, Sian Clifford, Michelle Asante, Tor Clark, Gabin Kongolo, Carys Bowkett, Bronagh Waugh, Beth Hinton
Where to watch The Suspect
Episode 2
Joe's wife desperately wants him to focus on his health, but he just can't get the murdered woman out of his head. He's convinced there's something sinister at play.
Directed by James StrongWritten by Peter BerryGuest stars Sian Clifford, Carys Bowkett, Marcus Garvey, Luke Williams, Gary Oliver, Joshua Parris
Where to watch The Suspect
Episode 3
Things look bleak for Joe as he embarks on his own investigation while the police continue theirs. Joe unearths details which lead him uncomfortably close to home.
Directed by James StrongWritten by Peter BerryGuest stars Richie Bratby, Sian Clifford, Bronagh Waugh, Holly Weston, Reese Scholtz, Angela Griffin, Bobby Rutter, David Lonsdale
Where to watch The SuspectEpisode 4
Desperate to uncover the truth, Joe finds himself on the run. In a final attempt to understand what is happening to him, Joe must dig deep into the past, including his own.
Directed by Camilla Strøm HenriksenWritten by Peter BerryGuest stars Sian Clifford, Bronagh Waugh, Angela Griffin, Bobby Rutter, Dermot Crowley, Haydn Gwynne, Francesca Knight, David Boyle
Where to watch The SuspectEpisode 5
Joe has finally uncovered the truth at the heart of recent events, but the threat to those closest to him has never been more real.
Directed by Camilla Strøm HenriksenWritten by Peter BerryGuest stars Stephen Whitfield, Marcus Garvey, Gary Oliver, Angela Griffin, Bobby Rutter, Emma Keele, Ronak Patani, Harry Long
Where to watch The SuspectEpisode information updated Jul 22, 2026
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