Detective Tomizawa (Yamaguchi Makiya) visits Mio Kamishiro (Takimoto Miori), who works at a patisserie, to investigate the "murder of a female journalist." The victim, Yuhi Minamizawa (Kumada Rinka), frequently visited the patisserie, despite not liking sweets. Furthermore, a mysterious man (Hosoda Yoshihiko) who moved into the room next to the Kamishiro couple has been watching and eavesdropping on Masato Kamishiro (Narimiya Hiroki) and Mio. Meanwhile, a new incident unfolds.