Bixby is a New York dentist. Once a month, for many years, his wife goes to Baltimore by train to visit her aunt. She does not tell Bixby about her affair with the Colonel, a single man with a big house near Baltimore, who is the real reason for all these visits. One Christmas, Mrs Bixby gets a parting gift from the Colonel - a splendid mink coat. So that she can explain the coat to her husband, she devises a complicated scheme which depends on pawning the coat and then 'finding' the pawn ticket... but the best laid plans o' mice and men gang aft agley.