Detention

A group of high school students will stay after school. Go to class, where they have a teacher who is in the room locked and mysteriously disappears. As the night is coming, coming a severe thunderstorm that causes a power outage. The whole school is immersed in darkness. As soon as students get out of class, he finds out that the old school building began to live his life. They begin to discover strange apparitions of spirits and the whole school is delegated to the period of the seventies. A group of students is trapped at school and we all begin to discover the history of one of the tragedies with which they are affiliated and now it is time to pay for a life of her own.