For years, there's been a legend that people die on March 10th by seeing something on their phone. Rumors quickly start to spread that it's the curse of Mary-san, but a reporter named Aki Inooka doesn't believe in curses until her brother Teppei seems to have fallen victim to the same curse. At the same time, Aki's friend group is unkowingly being targeted by Kuchisake-onna. As a last resort, she decides to go the curse's origin together with a psychic named Gunji Sakamoto.