Lorraine de Selle is an Italian-born former actress noted for her work in Italian genre cinema during the 1970s and 1980s. Wikipedia
Three friends out to disprove cannibalism meet two men on the run who tortured and enslaved a cannibal tribe to find emeralds, and now the tribe is out for revenge.
PCP is unexplainably released into the Frankfurt water supply and sends the zoo inhabitants crazy. One evening after a malfunction of zoo security the gonzo critters rampage through the city eating and killing whatever they fancy, wreaking a night of bloody terror. It's up to regular Italian-trash whipping girl Lorraine De Selle and obnoxious Super Mario lookalike zookeeper John Aldrich to sort it out.
A posh couple experience car trouble on their way to a villa party and stop into a local mechanic's shop for assistance, unaware of his shady background. After he and his mentally challenged assistant fix the car, the couple invite them to the party to return the favor, leading to an evening of mayhem.