TV Guide Alibi Tuesday

A man is found shot dead in a motel room. The door is found to have been chain-locked from the inside, so Alexa is left to ponder how the killer managed to escape. Detective thriller, starring Lucy Lawless and Bernard Curry

Another mystery for the cops on the island of Saint Marie, where the sun shines all day and it seems half the residents are killers-in-waiting. However, it's all change for the team. DI Jack Mooney (Ardal O'Hanlon) is now in charge, and his first Caribbean case sees the reinvestigation of a seven-year-old murder when a tourist provides an alibi for the woman convicted of the crime

The ecclesiastical sleuth investigates when rehearsals for A Most Perfect Murder are derailed by a dramatic death. Crime drama, guest starring Christopher Fairbank, with Mark Williams, Tom Chambers and Claudie Blakley

Old mates Jay, Gerald, Adam and David arrive on Saint Marie ready for the holiday of a lifetime at the Crystal Bay Horse Ranch. The occasion soon turns sour when the island is shaken by a torrential storm, and ranch owner Hannah advises the men to wait it out in their tents. By morning, Jack thinks he has seen the worst of it, until he opens up the locked police station and finds the body of a man lying in the middle of the floor. It's Adam, with scratches on his arms and laceration marks around his neck