It was not an easy Monday for the three sisters. The new boss unexpectedly fires Yulia. Will she be able to get to the bottom of the problem and stand up for herself? To transform into another person in four days is an unimaginable task! But can Sentyabrina refuse if the one with whom she is secretly in love asks? Responsibility for the younger ones is the eternal burden of the older sister, and Maya bears it with dignity. This time the sisters' problems are not ordinary, but Maya has an excellent assistant. But is he honest with her? Solve the mystery, restore justice, find love - and the sisters have only one week to do it all!