Synopsis

Saegusa Kento witnessed a mysterious woman abducting his female childhood friend who was later found murdered. The case remained unsolved for 15 years, nearing its statute of limitations.

One day, he hears a voice through a radio that was meant to be discarded. The voice belongs to a detective investigating the same case, sharing crucial information. As they continue communicating, Kento realizes that the person on the other end is living in the past. Together, across time, they work to solve this cold case.

This unpredictable human suspense drama weaves together a strong desire for justice that transcends time, along with complex human relationships.