Police Dog 1955

Two constables Frank Mason and Lade spot a burglar leaving the scene of the crime, and a tense chase unfolds. Lade is badly shot by the burglar before Mason can catch up. Back at the police station, Mason befriends Rex, a stray Alsatian dog brought in by another officer. Now living abroad, its owners donate the dog to the police, and Mason and Rex begin training together, a development that stirs tensions back home with Pat Lewis, the daughter of his landlady and her late policeman husband.

Pat resents not being able to treat Rex as a pet, and the dog’s presence pulls Mason’s attention away from their relationship. Despite the strain, Rex and Mason complete their training and take to patrols on the streets of Hampstead.

Meanwhile, Lade has died from his injuries. The killer continues to lie low, taking on temporary work at a builder’s until the CID arrives and he must flee. Mason’s relationship with Pat Lewis grows more strained, and he decides to move himself and Rex out.

Soon afterward, he and Rex are deployed to a factory where Hill’s still-armed killer is breaking into a safe. They give chase, with Rex clinging to the killer long enough to make the arrest.

Meaning to meet Mason for a final discussion about their relationship, Pat Lewis arrives at the crime scene and instead reconciles with both Mason and Rex.