Hannah, mother of two children, is a teacher at a Hamburg high school. She falls in love with her new colleague Bernd Vossler - not knowing what the consequences are. Hannah enjoys being in love with her new boyfriend, but sometimes she is amazed at his behavior. If Bernd does not succeed in something or he is under pressure, he loses his composure and his hand sometimes slips. On a fateful night, Bernd crosses all boundaries.