Death of a Detective (S03E01)

A university reunion party that DI Richard Poole is attending is brought to an abrupt halt when one of the group is murdered with an ice pick. With the case proving particularly sensitive, a new British detective, DI Humphrey Goodman, arrives on the island to help the team get to the bottom of the mysterious case. As the station's newest recruit with his own set of methods, will Humphrey be able to adjust to his new team and surroundings? (BBC)