Lee Gulliver never thought she'd find herself living on the streets - no one ever does - but when her restaurant fails, and she falls deeper into debt, she leaves her old life behind with nothing but her clothes and her car. Parked in a secluded spot by the beach, she sees a sobbing woman throw herself into the ocean. Lee hauls the woman back to the surface but, instead of appreciation, she is met with fury. The drowning woman, Hazel, tells her that she wanted to die. She's trapped in a toxic, abusive marriage, and is a prisoner in her own home. Lee has now thwarted her one chance to escape her life. Out of options, Hazel retreats to her gilded cage. Lee thinks she's seen the last of her, until Hazel unexpectedly returns the next morning. The women strike up an unlikely friendship and then, one day, Hazel makes a shocking request: she wants Lee to help her disappear. It'll be easy, Hazel assures her. But Lee soon learns that nothing is as it seems - and that Hazel may not be the friend Lee thought she was ...