People begin to see the creepy white face monster Yoshie in Shibuya.

Uchida Mayu is a high school student in a peaceful town near Tokyo. She suffers from violence from her stepfather and plans to run away to her uncle's home in Tokyo. As she is about to board the last bus to Tokyo, a terrible looking old person causes her to miss the bus. She attempts to walk across a ridge. Meanwhile, Mayu's uncle Uchida Kazuki is a freelancer writer. He chases after the hideous monster Yoshie who attacks people. Kazuki receives a phone call that his niece Mayu ran away. He begins a search for her and finds her cellphone on a mountain path. He sees Yoshie's picture on her cellphone.

They took a bad turn when they took the short cut to their house. Their car broke down and they can't escape the death forest.

A group of friends decides to explore a forbidden forest despite its dark reputation. As they delve deeper, they encounter horrifying creatures and must fight for their lives.

In Death Forest: Forbidden Forest, a group of friends ignore the warnings and decide to explore the forbidden Death Forest. Little do they know, the forest is infested with supernatural monsters that are based on a video game. They must now find a way to survive and escape the deadly forest.