The original name of this drama is "The Barking Murders", but it was renamed because the perspective focuses on the lives lost in the case. The story tells the real murder case in Barking, Essex, and describes Stephen Port's series of crimes and the much-criticized police investigation process from the perspective of the victim's family. Rapist and serial killer Stephen Port found his targets on gay dating websites, then drugged and raped them. Four of them died of Stephen Port's drug overdose; however, the first three murders were obviously similar, but the police did not investigate in the direction of "serial killings", so the victims' families believed that the police should also be responsible for the repeated occurrence of murders.