Sins of Desire 1993

Synopsis:

When a young girl dies mysteriously after being treated at a sex therapy clinic, her sister Kay goes undercover to find out who is responsible.

Directed by: Jim Wynorski
Written by: Peter Liapis & Mark Thomas McGee
Release date: 1993-03-03
Runtime: 87 minutes
Cast:
Gail Harris
Gail Harris
Monica Waldman 
John Henry Richardson
John Henry Richardson
Dr. Scott Callister 
Delia Sheppard
Delia Sheppard
Jessica Callister 
Tanya Roberts
Tanya Roberts
Kay Egan 
Nick Cassavetes
Nick Cassavetes
Barry Mitchum