The Godsend

When a strange woman has her baby at the Marlowe's house, then disappears, Kate Marlowe is forced to keep the baby, Bonnie. She loves the child, but when her own children are systematically killed, suspicion turns to Bonnie.

The Godsend is a 1980 drama horror movie directed by Gabrielle Beaumont, starring Patrick Barr, Cyd Hayman, Angela Pleasence. It holds an IMDb rating of 5.3/10 from 1,547 votes and runs 1h 33m.