When Laverne and Shirley get jobs at Bardwell's Department Store, their first task is wrapping rum-filled candies. However, Laverne is unaware of the chocolate's filling and decides to try quite a few of them and gets rather tipsy. As a result, Shirley has to find a way to keep their new boss from noticing so they don't get fired.

Shirley dates a doctor estranged from his wife. While watching his son at Cowboy Bill's, Laverne meets her. She's almost Shirley's twin. Shirley meets her later and now sees herself as a substitute. Which lady's heart will break in the end?