"Phantom Night" is adapted from Keigo Higashino's novel of the same name and is considered a sister piece to "White Night Walk". On the morning of January 17, 1995, a great earthquake struck Hanshin. In order to get rid of his father's debts, Mizuhara Masaya (Takashi Tsukamoto) took advantage of the chaos and smashed to death his uncle who came to keep vigil for his father. Unexpectedly, the murder was witnessed by a mysterious woman on the spot. The woman called herself Shinkai Midori (Kyoko Fukada). Her parents also died in the earthquake. She was alone and willing to keep the murder secret for Masaya. Masaya was impressed by Midori's beauty and gradually fell in love with this woman. The two agreed to forget everything here and go to Tokyo to start a new life. Midori used her beauty, body and skills to seduce men and step by step build her dream empire of the upper class; and all the obstacles along the way were secretly assisted by Masaya, but his life has never seen the light of day since then. Midu's day is Masaya's night, and the only way to connect the two worlds is the cruel crimes that Midu committed according to Midu's instructions. Detective Kato Wataru (Shibata Kyohei) also found the connection point in the seemingly unrelated cases - Midu Shinkai, and began to track down all clues. Will Masaya always protect Midu? Is Midu Shinkai her real name? Who is she?