When he goes on a drunken bender after failing to have an arsonist he arrested convicted, no one believes Jim's claims of having been forced to drink and having witnessed a murder.

Phillipa, out on parole, decides to give Jim some unwanted help in finding a stolen horse.

Jim suspects the dancing instructor of a leading Jersey socialite of stealing her diamonds.

Jim faces his toughest test to date when Susan's dead body is washed up on shore. Jim is convinced that she was murdered, but is he right?