when patricia newell be attack after witness her cousin murder and detective carrella search the city for her killer . identify the murderer after an intensive manhunt and patricia be send to live with relative in the country . for carrella the case be close . or be it . blood relative be an overlooked masterpiece . donald sutherland play a cop and it nice to see donald pleasance in a small role a a child molester . the conclusion be pretty disturb . still blood relative be more of a mystery than a horror film and so fan of gore will be disappoint . a must see for fan of old fashion mystery movie . positive .