Monroe's father is a fund tycoon. After his father's death, most of the family's inheritance was left to her mother and her brother. After receiving a mysterious letter, she came to a warehouse deep in the forest and found Morgan (played by Peggy) who had been imprisoned by her father for 30 years. In the process of taking care of Morgan, she gradually understood the reasons for the distribution of the inheritance. Kate Mara was originally the heroine of the film, but her schedule prompted her to change her role.