Waves of Lust (1975)
A young couple becomes embroiled with the personal problems of another couple on a yacht moored off Sicily during a turbulent weekend of fun, games, sex games, betrayal, spouse abuse, and murder
Cannibals in the Streets (1980)
Mentally unstable Vietnam vets who were held captive by the Viet Cong come back to America after being rescued carrying a dangerous virus that turns people into cannibals when bitten