Recently divorced from her cheating husband, Hayes moves to her dead grandmother’s glass house by the Californian seaside despite her parents’ obvious disapproval. Even though she did not know her grandmother very well when she was alive, Hayes is convinced that they had a strong bond—after all, that must be why she left the house to her in her will. She is determined to live a new and glamorous life in this extravagant house. She misses her ex-husband but tries not to think about it.

In the next week, Hayes gets a new job and a van. She is working at a natural health clinic now, booking Reiki appointments and private yoga sessions for wealthy weekenders. She meets an old man named Dave, who calls himself a climate refugee, and she feels compelled to lie to him and say she is living in her van. The next day, she reads all of the letters her grandmother wrote to her multiple lovers and meets a strange man lurking in her backyard, who claims to be checking her plants.

A few days later, Hayes finds out that Dave had also been lying to her—he only pretends to live in his van when someone is watching, and is actually very rich. It occurs to her that the house was not given to her out of love or a unique bond—there had simply been no one else her grandmother had been close enough to. Late at night, Hayes wakes up to a landslide near her house and sees the strange man lurking in her backyard again. She drives to a gas station nearby and discovers that the strange man actually has Alzheimer’s when his wife comes to find him.