Charming seasonal clerk Steve Mason (Robert Mitchum) catches beautiful Connie Ennis (Janet Leigh) in a fraudulent shopping scheme during the busy Christmas rush. But when he discovers that Ennis is a war widow and single mother, Mason takes pity on her and can't bring himself to turn her in. His supervisor takes notice and fires him on the spot. Mason befriends Connie and her young son, Timmy (Gordon Gebert), and may complicate her plans to marry boring nice guy Carl Davis (Wendell Corey).