Cheaper to Keep Her 1981

Synopsis:

A newly divorced swinger on the prowl goes to work as a detective for a neurotic feminist attorney.

Directed by: Ken Annakin
Written by: Herschel Weingrod & Timothy Harris
Release date: 1981-01-01
Runtime: 92 minutes
Tagline: A love story about women's rights... and lefts.
Cast:
Mac Davis
Mac Davis
Bill Dekkar 
Tovah Feldshuh
Tovah Feldshuh
K. D. Locke 
Gina Gallego
Gina Gallego
Sister #1 
Jack Gilford
Jack Gilford
Stanley Bracken