A furniture damage raises the question of how much Tobias can contribute to the shared apartment. Katrin struggles to soften her living concept. But then Michi comes into play as a consultant; Sunny negotiates details for the W&L Christmas reception with Erik. Laura feels ignored, and work processes in the 'Mauerwerk' get mixed up. Laura wants to renegotiate, but Sunny has the upper hand - until she overdo it.