House of crooked walls. Simada S.

Japan, Christmas 1983. The rich industrialist Kojaburo Hamamoto gathered in his mansion of friends and acquaintances. The guests are struck by his house - a bizarre structure with many rooms, inclined floors and it is not clear where the leading stairs, with a “falling” high tower resembling Pisan. All of them admire the fantasy of the owner and are preparing to meet Christmas fun.

But their expectations are not destined to come true. Because in Christmas Eve in the house there is a murder. From a stab, a driver of one of the invited dies with a knife. Urgently called the police in complete confusion. After all, the murder was impossible to commit - all the circumstances and conditions against this. And no one has a motive...

you will have all the necessary keys. But can you find a guess before the detectives do it?