Just like Heaven - Elizabeth Masterson (Reese Witherspoon), a young doctor whose work is her whole life, is seriously injured in a car accident while on her way to a blind date. Three months later, David Abbott (Mark Ruffalo), a landscape architect recovering from the death of his wife, moves into the apartment that had been Elizabeth's.
Elizabeth begins to appear to David at the apartment. However with ghostly properties and abilities it is clear something is not normal: She can suddenly appear and disappear, move through walls, and once takes over his actions. When they meet, they are both surprised, as Elizabeth is not aware yet of her condition. For the most part, David is the only one who can see Elizabeth, leading others to believe that he is hallucinating and talking to himself.
At first, Elizabeth does not remember anything of her life, and refuses to believe that she is dead. Her memories come back gradually. Together, assisted by Zen-like psychic Darryl (Jon Heder), she and David find out who she is, what happened to her, and why they are connected. They find that her body is in a coma in the hospital. When David discovers that in accordance with her living will, she will soon be taken off life support, he reluctantly tries to prevent this by telling Elizabeth sister that he can see her. It is then revealed that one of Elizabeth's young nieces can also sense her presence although she cannot see her. When Elizabeth's sister thinks that he is a lunatic and drives him away, David decides to prevent Elizabeth's death by stealing her body from the hospital. He asks J.J, his friend to help him and it is discovered that J.J is actually Elizabeth's former boyfriend and he had set Elizabeth's blind date with David, the night of the accident. The reason David is the only one who can see Elizabeth is that he was her blind date. He also eventually admits that he loves Elizabeth and that is the reason he doesn't want her to die. While stealing Elizabeth's body, they are eventually discovered in the hospital. As soon as David is pulled away from Elizabeth's body by the guards, he kisses her and she miraculously recovers. However, the recovered Elizabeth doesn't remember anything that happened during the coma or any of the events with David, leaving him heartbroken.