In the second part of the successful children's book adaptation, Franz, Gabi and Eberhard go on a turbulent hunt for criminals during the summer holidays – and uncover a completely different secret in the process.

A vacation guesthouse on the outskirts of town: Cora's longing and summer heat weigh on her, seeking expression in color. When the Frenchwoman Emma moves in, the lines of Cora's portrait blur, like the boundary between You and I.