She Was Marked for Murder 1988

While jogging in New York Central Park, the rich widow Elena meets Eric. Although he's 10 years younger, she falls in love with him and they marry shortly after. Soon she discovers that he has a long-going affair with her secretary Claire. Elena suspects they're after her money.

Cast:

Stefanie Powers
Elena Forrester-Chandler 

Lloyd Bridges
Justin Matthews 

Hunt Block
Eric Chandler 

Debrah Farentino
Claire Porter 

Polly Bergen
Laura Lee Webster 

Lou Liberatore
Donald