Awakening in a strange bed and suffering from a terrible headache -- not to mention the mysterious bruises all over her body -- alcoholic Karen Stewart (Phyllis Thaxter) tries to piece together the events leading up to her present condition. All she can recall at first is her most recent promise to her boyfriend Jeff (Warren Stevens) that she will stop drinking, and stop drinking for good. But Jeff had heard that song many times before, and he was in no mood to put up with her subsequent drunken binge. From this point forward, Karen's mind is a blank...but the blank will soon be filled in a horrific fashion. In light of the serious nature of the story, host Alfred Hitchcock foregoes his usual humorous epilogue. ~ Hal Erickson, Rovi