To help his divorced neighbor claim a substantial inheritance, a family man poses as her husband. The ruse spills over into his career in advertising, and his recent promotion relies on his wholesome and moral appearance.
Jack Lemmon
as Sam Bissel
Romy Schneider
as Janet Lagerlof
Dorothy Provine
as Minerva Bissel
Mike Connors
as Howard Ebbets
Edward Andrews
as Mr. Burke
Louis Nye
as Reinhold Shiffner
Robert Q. Lewis
as Earl
Joyce Jameson
as Hotel Prostitute
Anne Seymour
as Irene
Charles Lane
as Jack Bailey
Linda Watkins
as Edna Bailey
Peter Hobbs
as Phil Reisner
