Confession - S12.E25

A man comes in to Sun Hill and confesses to murdering a woman who disappeared five years ago. D.C.I. Meadows, who headed the original investigation, and D.C. Carver talk to him and, when they are convinced he is lying, throw him out. The man soon returns, and this time he tells Carver something that wasn't in the news stories making the police take his confession more seriously.