The real life serial killer who inspired Night Driver
It’s estimated he killed over forty young men in the years 1918-1924, although he was only formerly charged for twenty-four murders. As he worked as a police informant (and passed himself off as a detective) this made the case extra shocking.
Hans Grans, HAARMANN’S LOVER
Hans meant everything to Haarmann, but Grans had three female lovers who often hung out in Haarmann’s room and prostituted themselves there. It must have been intense. This was the story I wanted to tell: jealousy, rivalry, betrayal.
THE CONTINUED FASCINATION WITH FRITZ HAARMANN
INCONSISTENCIES IN THE REAL LIFE CASE
And what about Hans’s three girlfriends who often had tea with Haarmann? The idea that he could have killed and butchered a man (at one point every one and a half weeks) in secret is absurd.
THE INNER CIRCLE
Historically not much is known about Hans Grans’s girlfriends: Dora Mrutzek, Elfriede Zwingmann and Emmi Schulz, so I set the story in the modern day to avoid historical inaccuracies. Dora was especially good friends with Haarmann and the idea that she must have known was explored in the German film The Tenderness of Wolves (1973).