The Stepfather is a psychological thriller film in which Penn Badgley plays the role of Michael Harding, a teenager suspicious of his mother's new boyfriend. As Michael delves deeper into the man's past, he uncovers a series of dark secrets and realizes that his family may be in grave danger. The Stepfather is a suspenseful and intense film that keeps viewers on the edge of their seats. Badgley's performance as the determined and resourceful Michael received praise from critics and audiences alike.