Milla Engel has to recover Iris' wedding dress. She is under enormous time pressure and asks Peter Becker to help her. Peter, who has not the slightest idea of the hardships he is about to face, agrees. Michael and Iris' wedding reception is attended by all their friends and acquaintances. The wedding is initially harmonious, but then suffers from an incident and comes to a surprising end ... Barbara hints to Gerner that his managerial skills will hardly be in demand at Löpelmann in the future. Gerner is shocked to realize that there is still a lot of incriminating material in his office that must not fall into the hands of his successor under any circumstances.