Death Weekend (1976)

(a.k.a. The House by the Lake)

Harry is a rich dentist who often brings women up to his rural lakehouse. One weekend, he invites Diane, a former fashion model. On their way to the house, Diane runs a gang of thugs off the road. Humiliated, the thugs track down the couple for revenge.

Passed with cuts for cinema. Death Weekend was on the Section 3 Nasties List and was liable for seizure and forfeiture by the police. No UK re-release.