An old and never ending dream comes back to haunt Jonah's mind for a night after years submerged into oblivion in the depths of his subconscious. After returning from work, he receives a call from his best friend, saying that the two were invited to a party at a glamorous hotel outside the city.
Upon arriving at the party, he is faced with a splendid and extravagant place, failing to understand how its owners could keep such a place as a secret. At the reception, a beautiful woman catches his eye and Jonah sets his mind to get to know her better. However, the place's nuances end up being more quirky than he could have imagined, what soon changes his plans without him even knowing it.
The first surprise comes when he is invited to partake in a lucid dreaming session, joined by the host and the woman from the reception, who apparently are a very odd couple. Jonah is supposed to take a synthetically designed drug before joining the experience, which is given to him by Patrick, his best friend. The lucid dream experience leaves Jonah astonished by the extraordinary that was presented to him within the mechanism of the Dream Room, but Patrick messes up the drug for a simple headache pill.
From then on, Jonah starts having psychotic episodes where he alternates between two distinct realities, not knowing which is the right one and which is the dream, he goes on living lost between a maze inside the Dartagnan Brothers Hotel and a red room where he he is stuck to a bed, being watched by the party's host, a mercenary doctor, a perverted priest, and a woman who seems to have old quarrels to settle with him.
Gradually Jonah realizes what he did in the past to be trapped like that, discovering, after making friends with the host's long stranded brother in the maze, that he is being hunted by a religious organisation that is trying to bring back the work that used to be done by the old Holy Inquisition.
As he thought to be living a simple and tedious life, Jonah is surprised by a tangle of news about a new world that is presented to him, full of lucid dreams and drugs that induce him to the phenomenon of depersonalisation, making his reality become a mystery and hindering his mind to control his own thoughts.
Will Jonah be able to free himself from the clutches of a perverse religious sect and leave the Dartagnan Brothers Hotel alive? Will he manage to get around past mistakes and convince a completely crazy man that his sins do not give him the right to take justice into his own hands? Jonah's long-awaited weekend is full of surprises, one more unpleasant than the other.