A serial killer is up to mischief - and an old children's book serves as a cruel inspiration for him.

'If you find out within 48 hours why I kidnapped this woman, she'll stay alive. If not, she dies.' With this message, the perverse game of a serial killer begins. He lets his victims starve, drowns them in ink or wraps them alive in concrete. The Munich inspector Sabine Nemez is desperately looking for an explanation, a motive. Only when she calls in the Dutch profiler Maarten S. Sneijder do the two discover at least one pattern: an old children's book serves as a cruel inspiration for the perpetrator - and that still holds many ideas ...

The Red Series at a glance:

Harlan Coben: I Find You

Joy Fielding: Run, Jane, run!