Inside a remote rehab sanatorium, four newly arrived patients, each one with a specific emotional damage, go through hell by discovering and enduring the vicious methods of the sinister doctor's treatments, attempting to stay alive.
C.L.E.A.N. is a 2020 Croatian horror-thriller from Vjekoslav Katusin. Costas Mandylor and Tom Sizemore take part in supporting roles. The film was published by Dream Team Pictures under the name Čistilište, together with the Austrian cinema chain Cineplexx. It was released in Serbia, Montenegro, and Bosnia for several weeks starting in October 2020.