In a picturesque coastal town in California, a handsome radio announcer named Dave Garver lives a peaceful, carefree life, marked by his nightlife escapades and passion for music. However, everything changes when he receives a call from an obsessed listener who requests that he play her favorite song. The woman, named Evelyn, quickly becomes an unrelenting presence in his life. At first, the connection seems harmless and even a bit exciting, but it soon spirals into a whirlwind of madness.
With a seductive air and an insatiable need for love, Evelyn transforms from an enthusiastic fan to a possessive partner, willing to ruin everything that Dave holds dear, including his relationship with his girlfriend, who begins to notice irregular changes in his behavior. What seemed like a simple casual fling turns into an emotional nightmare as Dave tries to set boundaries. Evelyn's perplexing obsession pushes him to the brink of insanity, leading him to question his own decisions and personal safety.
As the tension escalates and threats turn into destructive actions, Dave must find a way to free himself from the trap that the woman has woven around him, or risk losing everything, including his own life. In this unsettling blend of romance and suspense, desperation and danger lurk in every shadow, revealing what happens when a relationship becomes too intense.