"Shin Hitō Meguri" is a psychological thriller anime that delves into the complexities of human behavior under extreme circumstances. The narrative centers on a group of individuals who find themselves trapped in a mysterious, labyrinthine facility with no memory of how they arrived. Each character possesses a unique skill or trait, which becomes crucial as they navigate the facility's deadly challenges. The facility is designed to test their limits, forcing them to confront their deepest fears, moral dilemmas, and the darker aspects of their personalities.

The protagonist, a reserved yet resourceful individual, emerges as a natural leader, guiding the group through increasingly perilous trials. Alongside the protagonist, key characters include a cunning strategist, a compassionate healer, and a volatile enigma whose motives remain unclear. Tensions rise as alliances form and fracture, with trust becoming a scarce commodity. The group must decipher cryptic clues and solve intricate puzzles to progress, all while evading the facility's lethal traps and the psychological toll of their confinement.

As the story unfolds, it becomes apparent that the facility is part of a larger, sinister experiment orchestrated by an enigmatic organization. The characters' pasts are gradually revealed, shedding light on their connections to the experiment and the reasons they were chosen. Themes of survival, identity, and the nature of free will are explored as the characters grapple with their circumstances and the moral implications of their actions.

The plot is driven by a series of escalating challenges, each more complex and dangerous than the last, culminating in a confrontation with the experiment's mastermind. The resolution hinges on the characters' ability to reconcile their individual strengths and weaknesses, ultimately determining their fate within the facility. "Shin Hitō Meguri" is a tightly woven narrative that combines suspense, psychological depth, and intricate world-building, offering a compelling exploration of human resilience and the consequences of manipulation.