Under Suspicion on AllMovie

Simon Moore's directorial debut (his also wrote the screenplay) is a brooding thriller that takes place in the melancholy British resort town of Brighton in the 1950s. Liam Neeson stars as Tony Aaron, a disreputable ex-cop who now makes a living as a sleazy private eye. With his wife Hazel (Maggie O'Neill) as bait, he arranges compromising photographs of errant husbands whose wives require proof of marital infidelities in order to obtain divorces. But one day, Aaron bursts into a hotel room to find Hazel and her client, a famed American painter, murdered; the painter's body has been mutilated, and his thumb, with which he signed his paintings, is cut off and missing. With an old crony of Aaron's, Frank (Kenneth Cranham), leading the investigation, two lead suspects are brought to the fore --Selina (Alphonsia Emmanuel), the painter's widow; and Angeline (Laura San Giacomo), the painter's mistress. And it is with Angeline, the person most likely to have killed the painter, that Aaron falls in love. But soon the tables are turned. When the victims were found to have been killed with Aaron's gunm and a neighbor leaves a suicide note claiming that Aaron is the killer, Aaron is arrested and found guilty of the killings. But right before Aaron's execution, a surprising piece of new evidence is discovered that changes everything.