With a pregnant wife at home, Keung has been struggling to find a job when he finally finds work as a security guard in a commercial building. Strange incidents occur in the building and his colleagues begin to one-by-one die in horrible ways due to an imp. A geomancer warns Keung that he will be the next victim and teaches him how to avoid the fate. But Keung discovers the imp is trying to possess his baby. Failing to stop this, the ending shows him trying to kill the baby with an axe.