A group of Japanese college kids are out for a night on the town. All seems well until Yokos cel rings with an unfamiliar tone. Unable to answer in time, she checks it to find the readout one missed call--from her own phone, three days in the future. More disturbing is the message: the sound of her own screams! No big deal is made of the matter, until three days later, when, at the exact time of the call, Yoko plunges to her death from a bridge. Things get scarier when Kenji gets a similar call. Three days after, he too is dead. Then its Natsumi who gets the call, except this time its worse. Her phone's video display shows her turning to see an ominous figure creeping around a corner, behind her. Natsumis scared witless and, as word of the curses have spread and broadcasters jump on the chance of a live, on-air exorcism, Natsumi agrees to go on TV at the appointed hour. Meanwhile, Yumi, a companion of all the victims, summons up the courage to delve into the terrifying mystery and find out who--or what--is killing her friends.