Park Ja-gi is a teacher on a high school in Seoul whose mother is a shaman. Though he refuses every superstition, he can foresee catastrophes in his dreams. One night Ja-gi dreams about many people who are jumping from the top of the school building. Shocked by his dream, Ja-gi tries to prevent the mass suicide and searches for help. He meets Jang Se-yun who can look 10 minutes into the future and Kang Min-hyok who is able to rewind the time about 10 seconds. But Kang still suffers, because he could not save his wide and child.