Un couple se dispute durant une nuit d’orage. Le lendemain, le corps de la femme est retrouvé sur la plage par Robert Tisdall, un proche. Celui-ci est désigné coupable car la ceinture qui a servi à étrangler la victime semble provenir de son imperméable, qu’il affirme pourtant s’être fait voler. Robert parvient à s’enfuir du tribunal et, aidé par Erica, la fille du commissaire chargé de l’enquête, il se réfugie dans un moulin. Dès lors, les deux jeunes gens cherchent à retrouver l’homme qui a volé l’imperméable afin de prouver que Robert n’est pas lié au crime…

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After a violent argument with her husband, a famous actress is discovered by her ex-lover, Robert Tisdall, drowned on a beach. Police arrive and arrest Tisdall on the testimony of witnesses who saw him with the body. He is accused of the murder. As he is about to go on trial, he escapes from the courthouse with the help of Erica Burgoyne, the resourceful daughter of a Police Constable. At first, Erica doesn’t really believe Tisdall is innocent, but she’s so attracted to the young man, she continues to help him elude capture while searching for the real killer, risking her life and her father’s reputation. Their only lead is provided by Old Will, a china mender, who can identify the murderer, a man with noticeably twitching eyes.