"One Dark Night" (1982) A Classic Indie/Horror Flick!

☆The police find six girls murdered in the apartment of famed Russian occultist Karl Raymarseivich Raymar, and they can't explain it. When coroners lift Raymar's body onto a stretcher, bolts of electricity shoot out from his fingers. His estranged daughter, Olivia McKenna, and her husband Allan are unaware of this until they meet Samuel Dockstader, a feature writer for The World of the Occult. As a friend of Raymar, Dockstader explains that Raymar was a psychic vampire who gained great telekinetic powers by kidnapping young girls, terrorizing them, and feeding off the bioenergy they produced. Allan does not believe him, but Dockstader shows Olivia a set of photographs to demonstrate how bioenergy works and gives her an audiotape that outlines his findings, which convinces Olivia to believe him.
☆Meanwhile, high school student Julie Wells wants to be part of a club entitled The Sisters, which consists of three snobby high school girls named Carol, Leslie, and Kitty. Unfortunately, Carol is the ex-girlfriend of Julie's new boyfriend, Steve, and is jealous. She intends to get back at Steve and Julie by making Julie spend a night alone in a mausoleum, unaware that Raymar's body was just entombed there. That evening, Julie is dropped off by only Carol and Kitty, as Leslie had refused to accompany them on the plan. Julie explores the mausoleum and sets up her sleeping bag, unaware of the cracks appearing around Raymar's vault.
☆Hoping to scare Julie, Carol and Kitty dress up in costumes and sneak back into the mausoleum. While they succeed in frightening Julie, who locks herself in the chapel, they are unaware that Raymar is slowly reawakening by using his powers to make the walls shake, windows explode, and doors slam shut. Before Carol and Kitty decide to leave, Raymar's powers open up the vaults containing coffins inside. Many rotting cadavers telekinetically float and surround the girls before they pile on top of them to suffocate them.
☆Meanwhile, Steve has gone to Julie's house to find her missing. He catches up with Leslie, who reluctantly tells Steve about Julie's initiation, and Steve angrily heads over to the mausoleum. At the same time, Olivia dashes over after learning about her father's powers and the possibility that she might also possess them. Back at the mausoleum, Raymar finally breaks out of his coffin and controls the rotting corpses and the doors with his psychic powers. Just when Steve breaks in and finds an hysterical Julie, they become surrounded by the corpses that advance toward them. Steve tries to fight the bodies, but they knock him out. Raymar pulls a dazed Julie closer to him before Olivia arrives to save her. Ultimately, Olivia takes her compact and reflects the bolts from Raymar's eyes at him, causing Raymar and the carcasses to disintegrate, rescuing Julie and Steve.
☆The three, including a now traumatized Julie, begin slowly walking out of the mausoleum. The film ends with Kitty's toothbrush (which she always carries around with her, usually holding it in her mouth) seen near the mound of corpses inside the empty mausoleum before a corpse falls in front and emits a scream.