Insomnia 4 – the fourth part of horrific horror on android, where you will unravel the mystery of the Nazi castle. In this game you will play the role of the protagonist, who was the prisoner of his nightmare. In his dream, our hero was transported in 1952 into a gloomy Nazi castle, where terrible things are happening. In this castle there is a ghost of a child, whom you must release, having solved many secrets and mysteries, in order to avoid death and leave a terrible dream. Interact with various objects, solve difficult problems and find the objects you need to yourself not to become a prisoner of a terrible castle. Explore all the rooms and rooms of the castle and unravel all the secrets and horrible places.