Fiend (1980)

Plot

An unsettling force brings back to life a deceased music instructor, who now faces a grim fate: he must drain the life force of others to sustain his existence. Settling into a quiet Baltimore suburb, he resumes his music lessons, but his eerie behavior raises eyebrows among the locals. As he navigates this new life, the tension between his sinister deeds and the growing suspicions of his neighbors escalates, leading to a chilling confrontation with the dark truth behind his resurrection.