In this speculative fiction novel, a man with no memory of his daytime activities hires a husband-and-wife detective team to follow him and uncover the truth about his mysterious occupation. As the detectives delve deeper into the case, they find themselves entangled in a surreal, nightmarish world that challenges their understanding of reality. The investigation leads them to confront a secret society and a reality-altering substance, culminating in a confrontation with the very nature of existence and the role their client plays in maintaining the balance between good and evil.

The 3726th greatest book of all time