There were no secrets in the life of Masha Kalinina. Loving parents, friends, work - the cozy little world collapsed in an instant when Masha found out: she is a stepdaughter in the family and she has an older brother. The girl really wanted to meet her only loved one, not suspecting that she was not the only one looking for him... Eduard Tamm dreamed of revenge: several years ago, his adopted daughter and her lover Max robbed him and almost killed him. For a long time Tamm and his assistant Bert were looking for the culprits until they learned about the existence of Max’s sister. Without thinking twice, they decided to use the girl as bait... Masha did not believe that her brother was capable of a crime, and was not going to hand him over. She was ready for anything, but suddenly she noticed that Bert was treating her unexpectedly tenderly...