Can you trust your loved one? This question haunts top chef Katharina Schweitzer after her dishwasher Minka is pulled from the Rhine and her boyfriend Ecki comes under suspicion of murder. But not only her love for Ecki is at stake; the survival of the White Lily is also in jeopardy, as a new restaurant chain disrupts the Cologne gastronomy scene with ruthless competition. When Katharina once again puts her detective skills to the test and uncovers a devious mix of greed and deception, she can only hope that she is doing the right thing.