Shoplifting security guard Nikaido Yuki interacts with people's hearts through work and solves the cases he encounters. Toru, her husband, finds a new job and begins to work vigorously at the new job. However, it was discovered that the company had a suspicious business. Because of that, Yuki and Toru are involved in a serial murder case. In addition, it led to a murder case that had been talked about in the streets with the statute of limitations approaching... (Source: TBS)