The Door

'The Door' is the story of the young Ilya, whose parents disappeared when he was too young to remember them. The engineer Karev - a secretive man who breeds white cats in his attic - keeps everything hidden from those around him, including Ilya. But, having discovered a message from his father, will he manage to evade the communist authorities and find out why they are after him and where the strange lullaby Karev sings him every night really comes from?