Secret prison for detaining, interrogating, torture and finally execution of prisoners when the had confessed. From 1975 to 1979 10.500 grown ups and 2000 children went into the prison and not a single came out alive. They all ended up in the killing fiels of Choeung Ek, just outside Phnom Penh.
14 dead bodies was found on the beds in the torture chambers when the army moved into the buildings. They were alle killed before the Khmer rouge moved out. They are now buried in the prison yard.