Mila's misfortunes began when she came to the editorial office of the magazine where her childhood friend Alik worked. Suddenly, in a fit of passion, he pulled her onto the balcony and kissed her. At that moment Mila saw a man with black tights on his face. He shot at her twice, but missed. Alik didn’t notice anything - after all, the pistol had a silencer! Returning home, at the entrance Mila met Konstantin Glubokov, who called himself a private detective. The grandfather of the Glubokov brothers invented an “invisibility” drug, sold its composition to someone, and then the grandfather had a stroke. The client left him a phone number for contacts, and the brothers used it to find Mila and rent an apartment right above her. The brothers are aware of all the events in her life, but, like her, they do not understand how and to whom she is bothering. Mila, with the tenacity of a maniac, begins an investigation and... comes to the conclusion that all men are toadstools...