One day, Yumi (Kou Shibasaki) finds a weird voice message on her cell phone. The voice sounds like hers but ends in a bone-chilling scream. The call apparently came from her own cell phone. It's...

One day, Yumi (Kou Shibasaki) finds a weird voice message on her cell phone. The voice sounds like hers but ends in a bone-chilling scream. The call apparently came from her own cell phone. It's dated three days into the future. It'd be easy enough to dismiss as a prank call if it were not for the fact that three days later, at the exact same time and with the exact same scream, the friend dies. The coincidences begin to pile up as the circle of cell phone death warnings, widens. Until one day, Yumi realizes that she's got one missed call!