In a world where perfect life can crumble in an instant, a successful executive, Derrick, leads a quiet life with his wife, the charming and caring Sharon. However, everything changes when a new assistant, Lisa, enters their lives. At first, she seems like just an attractive and ambitious girl, but her obsession with Derrick quickly turns into a nightmare.
As Derrick tries to be kind and professional, Lisa begins to cross boundaries, displaying increasingly erratic and dangerous behaviors. Things escalate when Lisa becomes manipulative and infiltrates the family's life, testing the couple's relationship with jealousy attacks and increasingly tense situations. Sharon, concerned about the growing attention her husband receives from Lisa, starts to notice that their family life is in danger.
Throughout the movie, tensions rise as Derrick attempts to rid himself of Lisa's obsession without jeopardizing his career or his family. With a psychological game filled with unexpected twists, the story explores the thin line between attraction and madness, leading us to an ending that redefines what it truly means to be "obsessed." The struggle to regain peace and normalcy turns into a battle between love, desire, and revenge, leaving everyone wondering how far one would go to protect their loved ones.