Nightmare Beach

Nightmare Beach (also released as Welcome to Spring Break) is a 1989 slasher film directed by Umberto Lenzi and Harry Kirkpatrick, and starring Nicolas de Toth, Sarah Buxton, John Saxon, and Michael Parks. Plot Diablo, the leader of the Demons motorcycle gang, is about to be executed for the murder of a young woman. Confronting the victim's sister Gail, he proclaims his innocence and vows to return before being killed via the electric chair. A year passes, and Spring Break has come to Miami. Two football players, Skip and Ronny, are amongst the partygoers for the week-long festivities. While Spring Break is occurring, a mysterious biker appears and begins to dispatch people. The back of his bike has a lever that when pulled (combined with a button pushed by the biker) causes the victim to undergo a treatment similar to the electric chair. When Ronny ends up a victim of the mysterious killer, Skip attempts to find Ronny with the help of Gail, who works as a bartender during Spring Break. The duo soon find Ronny and learn that local police chief Strycher and physician Doc Willet have covered up Ronny's death for the partygoers not to worry. However, as the body count rises, Gail and Skip begin to wonder if Diablo made good on his promise to return from the dead or is someone else responsible. Meanwhile, Trina, Diablo's girlfriend, is relaxing at the gang's old hideout. She puts headphones on and is listening to music when a figure appears. She assumes it's Diablo back from the dead. It's not until he grabs her violently that she realizes it's not. Trina is slammed on the couch, and then the biker pulls a live wire out of the wall and attaches it to Trina's headphones. Volts of electricity run through Trina's body, killing her slowly and painfully.