A sinister game begins when a group of classmates reunites at their high school reunion, only to uncover a time capsule containing a defaced graduation album—and soon, their peers start dying mysteriously. As two former classmates race to unravel the truth behind the deaths, their own hidden secrets threaten to expose a web of lies, turning every classmate into a suspect in a nonstop suspense-driven mystery: who is the true culprit?

Created by Shunsuke Kariyama and 滝本憲吾 and Shinya Nagano