Cal Zimmerman, a researcher, is interrogated regarding an experiment he conducted two years prior. At that time, Abel, a dedicated professional working for a scientific research lab, experiences the devastating loss of his wife and only child. As he navigates a deep state of mourning and isolation, his life takes an unexpected turn with the appearance of a child who bears a striking resemblance to his daughter. Struggling to maintain his sanity, Abel decides to face this mysterious presence and gradually begins to understand and connect with the girl.