Fourteen years after the brutal murder of her older sister Eliza, Greer Dunning returns to her Kansas hometown when a new killing mirrors the past tragedy. Despite the authorities dismissing it as the work of a copycat, Greer is not persuaded. The unnerving suspicion that her sister's murderer had accomplices propels Greer to seek the elusive truth. Her quest draws her into a dangerous alliance, transforming erstwhile neighbors into suspects, and peril lurks at every corner. 'I Did It For You' scrutinizes the nuances of guilt and grief, revealing the profound impacts of violence on both the victim's family and that of the perpetrator.