Sean's attempt to end it all is halted at the very last second by an odd man with a proposal that Sean has little choice but to accept.
He is to help others with their own lives; a new profession that he is completely ill-equipped for. The thin strands of Sean's own life begin to unwind the deeper he digs in his new tasks. A sickly-looking man that only he can see, worsening nightmares that seem more real than not, and an increasing belief that he is going clinically insane push Sean to a point where he questions what is real and what is not.
He will find meaning in the meaningless, and discover how deep the roots of his own problems go. For only then can Sean truly find happiness in an unhappy existence.