Mike Vecchio and Susan Henderson are preparing for their upcoming wedding. However, they seem to be the only two people at the wedding that are happy. Mike's brother Richie and his wife Joan are going through a divorce, which is upsetting his overly devout Catholic mother Beatrice. Also, Susan's father is carrying on an affair and her sex starved older sister Wilma is going through her troubles with her husband Johnny. All this is going on while Mike's best friend Jerry is trying to bed the maid of honor, Susan's cousin Brenda.
Bea Arthur
as Bea Vecchio
Bonnie Bedelia
as Susan Henderson
Michael Brandon
as Mike Vecchio
Richard S. Castellano
as Frank Vecchio
Bob Dishy
as Jerry
Harry Guardino
as Johnny
Marian Hailey
as Brenda
Joseph Hindy
as Ritchie Vecchio
Anne Jackson
as Kathy
Diane Keaton
as Joan Vecchio
Cloris Leachman
as Bernice Henderson
Anne Meara
as Wilma
