What starts as a harmless mobile game obsession quickly spirals into a fight for survival in the pulse-pounding thriller Doubt. When a group of online friends decides to take their digital camaraderie into the real world, they find themselves kidnapped, trapped in a decaying, abandoned building, and marked with mysterious barcodes. The rules are simple but deadly: hunt down the wolf hiding among them, or become the next victim in a gruesome game of life and death. As paranoia spreads and the bodies start dropping, the lines between player and prey blur, forcing them to question if they ever really knew the people behind the screens. This is a masterclass in psychological tension and claustrophobic dread that will keep you guessing until the very last page. If you love high-stakes mysteries where trust is a death sentence, this is an absolute must-read.

Horror, Mystery, Psychological Thriller, Survival Game, Suspense, Dark Manga, Psychological Horror, Trapped, Whodunnit, Death Game