In the Supernatural episode (Season 15, Episode 4), Sam and Dean Winchester find themselves caught between a tragic local mystery and the meta-narrative manipulations of God himself. The Iowa Case: A Family Secret
: The true "monster" is the son, Billy Whitman , a Yale-bound lacrosse star who recently turned and accidentally killed his girlfriend during a "feeding frenzy." [S15E4] Atomic Monsters
: Unlike many monsters, Billy is horrified by his actions. He chooses to surrender and asks the Winchesters to kill him to stop the cycle of violence, forcing Sam and Dean into a "mercy" killing that leaves them both shaken. ✍️ Chuck and Becky: The Author's Return In the Supernatural episode (Season 15, Episode 4),