I was expecting a black-gloved killer stalking people and killing indiscriminately. What you get is a story involving 3 characters. After an accident, Helen takes an offer to go and spend some time with her ex-husband and his rich wife. When she gets there the Helen finds out it was the wife that invited her and not the ex-husband. Helen discovers that she's been invited to help kill her ex-husband.
There are twists and turns in this Hitchcock like thriller after a murder attempt goes wrong suspicious eyes fall on the two survivors as everything seems to go wrong.
The more the film went on the more i got into the film and enjoyed the rising tensions that were expertly directed, by Lenzi.