The Orphan (1979)

Name: The Orphan
Genre: Horror
Released: 1979-11-02
Duration: 87 min
Cast: Mark Owens, Afolabi Ajayi, Stanley Church, Malachy McCourt, Joanna Miles

A disturbed young boy whose parents have recently died begins worshipping a stuffed chimp god as his relationship with his aunt/guardian becomes increasingly toxic. "Suggested by the short story 'Sredni Vashtar' by Saki (H. H. Munro)", per the credits.