A Utah mother orchestrates her son-in-law's murder disguised as self-defense, manipulating her daughter and son into executing a plot inspired by the Donna Adelson case. When investigators uncover air tags, recorded phone calls, and staged evidence, a family's dark conspiracy unravels, exposing how a controlling parent can turn a tragedy into a calculated killing. Tracy Grist lured her son-in-law Matt Rustelli to Utah by having her daughter fake an ankle injury, then orchestrated his murder by her son Kevin to prevent losing custody and control over her daughter Kate.