No one can live alone. That’s why we search for affection and warmth.
Rika?the protagonist?has a pure, undying love that brings her to insanity. This psychological thriller depicts her longing for affection.

The story is set in Tokyo at Hanayama Hospital. The assistant director, Masashi Oya, is a little indecisive, but he definitely has skills. He also has a fiancee. But one day, they hire Rika Amamiya as a nurse?when in actuality, she came in with her eyes already on Masashi. After which, strange incidents continue to occur. Disappearing patients, nurses, doctors…and even Masashi’s fiancee falls into the grasp of Rika’s magic hands.
Three years later. Film producer Takao Honma is living apart from his wife because of her cheating ways, and he even lives apart from his only beloved daughter. One day, he creates an account on “a dating app with messaging features” to do research for work. And that’s when he receives an email from a woman with the username RIKA. They exchange emails for a while, and Honma?for work purposes?suggests to Rika that they meet up… Since then, Honma’s phone receives countless messages and calls. Rika’s persistent stalking continues, following him to his office and his home. With Honma’s coworkers, investigators, police detectives, and even his wife and daughter dragged into this intense story, the plot meets an unexpected end.