Dirty Duck (1974)

Mild-mannered insurance investigator Willard checks on the claim that an old woman who owns a tattoo parlor has died. She tells him that her Ouija board gave her a message that she would be killed by a wizard. Willard tells her that she will not receive any money until she is dead, and she suddenly dies of a heart attack. Her will states that her killer would inherit her duck. The Dirty Duck takes Willard on a quest to experience life to the fullest. How? First, they're both thrown into jail. Next they go to a bordello to get Willard laid.