The secret of the three. Chuck E.

Kira Zhuravleva does not remember herself up to 10 years. All her children's photos are cut by a zigzag, except for one. The mother always runs out with geranium in her hands, and her father constantly lies...

when the girl is a chance to finish her graduation in Moscow, she does not hesitate. After all, there Kira will live with friends of the Vorontsov family. Those that are depicted in the only surviving picture. Can these people know what her parents hide for so many years?

The Vorontsovs meet Kira in their mansion. Now she goes to a private school for gifted teenagers with their daughter Alla and is secretly investigating the circumstances of her past.

Alla at the age of 19 is well versed in poisons and writes articles for scientific journals. But her abilities are much more amazing: she can predict someone else's death. Mathematically. And, it seems, the victim from her last formula-prophecy is somehow connected with Kira...