Writer Carl Granville, going through a rough time, receives an enticing offer from a publisher: to write a novel based on some extremely secret diary. The work must be done under the strictest confidentiality and will be rewarded handsomely. However, this “gift from God” turns into a devilish trap when people connected to the events described in the diary begin to die, and suspicions about their murders keep falling on Carl again and again. To clear himself of the accusations, he must find out whose diary it is and who benefits, so that the secrets kept within it will never see the light.