A half crime Drama/half legal procedure focusing on the Criminal Investigation Department (C.I.D) Detectives who investigate murders involving the people on the streets of London and the Crown Prosecutors who prosecute the defendants in court. The police half focuses on the exciting case load of London Metropolitan Murder Investigation Unit (M.I.U) made up of dedicated officers including recovering alcoholic Senior Detective Sergeant (D.S) Ronnie Brooks (Bradley Walsh), who substitutes booze with food, he is a cop from the East End with a tough past and a big heart. His partner is Junior Detective Sergeant (D.S) Joe Hawkins (Ben Bailey-Smith), a young officer who has come straight from child protection to the murder squad. Their boss DI Wes Leyton (Paterson Joseph) has been through it all and knows the only way to change things is from the inside. Once our police heroes start pounding the streets in the pursuit of their prime suspect by piecing together the clues of each and every ...