Dark Heart (aka Wagstaffe)

Detective Inspector William Wagstaffe (Tom Riley), 32, is haunted by the murder of his parents during a family holiday in Spain when he was 16 years old. The killers are still at large and ‘Staffe’ is unable to let go until he finds them. It is probably no coincidence that after leaving school and joining the police force he rose quickly through the ranks to become Detective Inspector before the age of thirty.