Hässliche Vaterliebe... und ihre Lippen schweigen (2001)

When he treats little Nicole Weber's knee after a bicycle accident, former detective Armin Streiwen has no idea that this will make him a murder suspect. The next day, the child is found dead, and witness statements heavily incriminate him. Shortly after his visit to Nicole's father, he too is dead. With the police on his heels, Streiwen tries to prove his innocence and find and protect Nicole's missing sister.