I saw this movie at a drive in, it was the early to mid 70’s. It was in color, it was in English. What I remember about the film is this, the boy in the movie has issues, mentally I believe. Most of what I remember I believe is toward the end of the movie. There’s a baby that disapears and there’s a search and there suspiciously is a rope coming down from the barn ceiling with a bucket hanging from the end. Some of the men searching come across it and look in it. The baby is hacked up and in the bucket. Somehow they figure out its the trouble boy. Who they lock in the basement of the farmhouse, while they decide what to do with him. When the boy’s mother who I believe has been protecting her son through out the movie opens the door or the basement carrying an oil lantern. She throws the lantern setting the basement and the boy essentially on fire, then she purposely jumps or falls into the fire. Dieing with the son she protected and loved but could not save. The mom of the boy, may or may not of been the mother of the baby as well. This is all I recall about this movie I saw as a boy 40 years ago give or take a few years. Please help me find the name of this movie. Thank you