WaPo Berlin S04E07 - Wunschkind

The Water Police discover an unmanned kayak on Lake Wannsee. It belongs to Steffen Engelhard, who runs a guesthouse and kayak rental on the lake with his wife and son. Steffen is initially missing—until Fahri and Axel discover his body floating in the water.

The investigation reveals that he was beaten to death with a paddle as he was returning from a kayak tour and docking at the rental pier. The tourist Marie Hanschke soon comes under suspicion. For several weeks, the young trans woman had been staying in a room at the Engelhard family's guesthouse, taking a break from big-city Berlin, where she lives in a shared apartment with her best friend Isabel Noack and several other women.