When Diana Newport nearly drowns, she finds herself on the razor's edge between life and death, where she is reunited with her dead sister. When she comes back from the brink, however, into the land of the living, she knows at at once something is wrong.  Someone else has returned as well, a disgruntled Vietnam vet ferrying with him the soul of a serial killer executed for his crimes against humanity. Now, in a desperate race against time that will try her faith to the utmost, Diana must stop him before he exacts his revenge.