Evgenia Okhotnikova accidentally witnesses an explosion in the flames of which a millionaire businessman died. And a few hours later, chance brings her together with the son and daughter of the murdered man. But every accident has its own pattern... And now Zhenya is in the thick of things. After the death of the father, a huge inheritance was left, and now the children are in danger: an attempt has already been made on his son, and his daughter is also balancing on the brink of life and death - in a week she will turn eighteen, and then the will will come into force...