Brightburn
As most people probably know this is a movie that imagines the origin story of an evil Superman whose alien powers, true purpose and malignant nature (this kid is the walking incarnation of the AD&D alignment of chaotic evil) don't become apparent until about twelve years after he's arrived on our planet and is seemingly undergoing puberty-or whatever the alien equivalent is. His adoptive mother (Elizabeth Banks) is the last to want to believe the worst of her son Brandon, but as the film makes clear with an extended classroom discussion of parasitic wasps and their various victims, Brandon is responding to his instincts and programming. There was likely not anything his adoptive parents could have done to not set him off eventually. This might have been more enjoyable if there had been some internal conflict on Brandon's part.

Richard Donner directed Superman and The Omen. Brightburn is a mashup of both of those films. This is low budget with a fair number of plot holes but it's not meant to be analyzed that deeply. It is very gory, or at least has some quite violent scenes. Those who can't tolerate extreme violence are cautioned.