Hammer House of Horror (1980)

S1E4 Growing Pains

Title: Growing Pains Plot: In a heartbreaking turn of events, ten-year-old William loses his life after consuming food meant for his father's experimental rabbits. Grieving, his parents, Terence and Laurie, decide to welcome another boy into their home, named James. However, from the start, James exhibits peculiar behavior, and unsettling occurrences seem to follow him, leaving Terence and Laurie questioning their decision to adopt him.