It was not the first time that Lena Slutskaya was attracted by a strange shine in the attic window of the house opposite. Trying to find out the reason, the girl begins to suspect that an attempt is being made on the life of businessman Pavel Shirokov, and she decides to warn him about the possible danger. Meanwhile, strange things begin to happen to Lena herself. She is credited with actions that she did not commit, seen in places where she has never been. Her ex-husband is horrified by her antics, which she has no memory of. And her lover suspects her of the cold-blooded murder of watchmaker Christopher Grabbe. But oddly enough, the impending assassination attempt, the accomplished crime, and the inexplicable incidents with Slutskaya have the same roots and are connected with the mysterious, disappeared Atlantis, which still never ceases to excite people’s minds, and with lost knowledge and treasures.