Undertow stars Scott Brady as a gambler just out of wartime military service. No longer interested in wagers and speculations, Brady wants only to open up a mountain vacation lodge. Before this can take place, Brady is framed for murder, and forced to hide out in the home of Peggy Dow. With the help of Dow and a policeman friend, Brady searches for the real murderer. Watch carefully in Undertow and you'll spot new Universal contractee "Roc" Hudson as a plainclothes detective..