Series 4

Tragic events unfold after a wedding with a bizarre guest list: the bride and groom, who have only known each other for three weeks, advertised for guests to attend the ceremony in Penzance. Next day, one of the couple is found stabbed to death in their luxurious honeymoon hotel.

A petty criminal turns into a killer. A man is stabbed to death in a pub car park by a stranger. As Wycliffe investigates, the victim turns out not to be the upstanding businessman he seemed to be.

Wycliffe and Kersey exchange strong words as they investigate a disturbing case involving the contamination of jars of baby food in a local supermarket by a blackmailer. Meanwhile, the disciplinary enquiry into Wycliffe's team continues to run its course.

Wycliffe probes the disappearance of a lone yachtswoman, whose boat is discovered scuttled on the seabed.

A dark family secret comes to light when a girl deliberately runs over a woman on a pedestrian crossing. The results of the enquiry board are revealed.

A couple facing eviction from their tied cottage are suspected of murder when the landowner is suddenly killed. Wycliffe must act quickly to identify the killer before locals take the law into their own hands.

When a local pub landlord is bludgeoned to death, Wycliffe can find few people with a good word to say about him. A police informant points the finger at the victims' former wife and her new husband, but when DI Lane mishandles the situation, Wycliffe and Kersey are forced to stage a dramatic rescue.

Pursued by the press, under the spotlight of an internal investigation, and lacking support from his superiors, Wyclife's problems multiply when an old case resurfaces, and DCC Stevens seems out to prove Wycliffe is no longer up to the job.