Phantasm

A young man named Jody attends the funeral of his friend, the victim of a bizarre murder. Jody's younger brother, Mike, watches the funeral from a hillside through high-powered binoculars. After the guests have departed, Mike watches a funeral attendant put the unburied casket into a waiting hearse. Looking to expose the strange ongoings at the mortuary, Mike breaks in at night. There he discovers spectral creatures in habiting the embalming cellar. He also finds a silver sphere with razor-sharp protruding daggers that flies through the air and drains the blood from its victim's heads. Mike tells Jody what he found, and they join forces to discover the truth about Morningside Mortuary.