Sommerglühen (2009)

Sinopsis

Like the sound of the reeds when the wind drives in and makes its stalks billow - that's exactly how it feels for Pia, who loves her brother Lukas. She spends a day with him at the lake. Lukas, however, knows nothing of her love. He begins to suspect what is going on inside his sister. But then his new girlfriend comes along - his first great love...