mirov prison. >> filming in mirov was extremely difficult in the sense that everywhere you turn there is a beautiful shot and you want to stop and go oh, there's another one. get another shot. we didn't have that kind of time. we had other elements in the story to capture and different people we wanted to talk to. but you could spend all day, two days, three days, just shooting these beautiful, incredible architecture type shots. >> the nation's oldest prison, it was billed in the mid 13th century to protect the land holdings of a local bishop. it was first used as a prison in the 14th century. today, it is a maximum security institution that houses the czech republic's most notorious criminals. it has been called the czech alcatraz. >> translator: that's just because of the type of convicts that we have here in this prison. that means convicts in maximum security and those serving life sentences. as of today, we counted 163 convicts are here for murder. 87 are for assault and robbery. 20 for rape. 37 for theft. they are house in the cells holding between eight and 18 convicts. the on

. >> i remember we went into this beautiful little village of mirov.nsported into another time. it was beautiful and quaint. there were none of the trappings i'm used to, billboards, advertisement, fast food places. then on top of a mountain was this gorgeous old castle and that was mirov prison. >> inside this fairytale-like 13th century castle we had an encounter with a man whose life was anything but a fairytale. his name was vladimir kuna. >> i heard a lot about vladimir kuna when i got to mirov prison. he was one of the most notorious inmates housed there. because he was such a high profile inmate he had to be taken into a specific cell before we were able to go in and interview him. so there was this big buildup about his notorious crimes. the violence. he was like a character out of "goodfellas." when i started talking to vladimir, i was a little surprised. he was a very calm, gentle guy. he was relaying his situation to me. >> translator: i was living a double life. it was awful for me. it's like watching a horror movie on tv then you're actual