Naoki Urasawa's Monster Season 1 Episode 6 The Missing

A young girl named Nina has gone missing, and her father hires Tenma to find her. He learns that Nina was mistreated by her parents, and left to explore Hamburg on her own. Meanwhile, a group of homeless people are disappearing from the streets of Hamburg, and the police are struggling to find any leads. Tenma discovers a connection between the missing homeless people and Nina's disappearance, and begins to unravel a dark conspiracy involving a powerful pharmaceutical company. As he delves deeper into the mystery, Tenma realizes that his own life may be in danger, and he must stay one step ahead of those who want to silence him. Along the way, he also confronts his own beliefs about justice, and the lengths he is willing to go to protect those who are vulnerable. As tensions rise and the danger escalates, Tenma must race against time to unravel the truth behind The Missing.