Cathryn is suffering from schizophrenia and is haunted by hallucinations of apparitions. Her husband has his mind on other things, while her mental state is deteriorating. She is unable to define whether the people around her, like visitors to their house, are real or imaginary.
Previously filmed in 1930 as True to the Navy, Kenyon Nicholson's old stage farce Sailor Beware returned to the screen in 1936 as Lady Be Careful. The plot remains substantially the same, as an amorous sailor named Dynamite (Lew Ayres) bets his pals that he can "thaw" icy beauty-contest winner Billie (Mary Carlisle). What follows is a series of misunderstandings, arguments and reconciliations, all wrapped up in a happy-ever-after conclusion.