In the heart of a botanical garden in a medieval university town in Germany stands a majestic ginkgo tree. This silent witness has observed over a century the quiet rhythms of transformation across three human lives. At three distinct moments across the 20th and 21st centuries, these people — each carrying their own questions and inner struggles — inevitably find themselves drawn into the presence of this tree, full of mystery and meaning.

A reclusive outsider artist with a locked jaw becomes the prime suspect in a grisly murder investigation.