1960 produced some remarkable suspense films, notably Alfred Hitchcock’s Psycho and Michael Powell’s Peeping Tom. Heartthrob brought Peeping Tom to mind; however, unlike my feelings toward Tom—a traumatized child who became a psychopath and ended his life mirroring his victims' deaths—I couldn’t muster any empathy for Heartthrob’s Henry. The narrative centers on the unsettling nature of his fixation with a woman named Sam. Their connection starts with contentious exchanges, progressing to deceit, obsessive violence, and constant monitoring. Henry is completely infatuated with Sam; at one point, he even mentions to her mother how easily he could use an object to harm her. His killings are straightforward, lacking any resistance from the victims or police involvement—apparently, in the director’s view, he's operating on a superior intellectual level. As the story neared its conclusion, it became apparent that Henry had restrained Sam’s mother and then invited his beloved over. She subsequently located her mother and assisted in her escape, leading to a final scene. I don't perceive Henry as intelligent; instead, he comes across as deceitful, disloyal, and a pitiable murderer consumed by obsession. Regarding Sam, I see her as someone self-centered who continues the relationship because she’s the target of a teenage killer’s intense affection while overlooking the deaths of her friends and demonstrating a troubling lack of moral awareness.

Source on TMDB