Night of the Strangler [a.k.a. Is the Father Black Enough?] (1972)

Starring:

• Chuck Patterson
• Micky Dolenz
• James Ralston 
• Michael Anthony

Storyline
In New Orleans, a man learns that his sister has a black lover and is pregnant. He throws her away and, a bit later, she is murdered by a mysterious killer with a peace-sign belt buckle, who disguises the murder as suicide. Her friend Vince and a black priest investigates, but this leads to more murders until a surprise ending.