Marie-Christine Bergeron and Maxime Landry investigate artisanal sperm donation. They discover an unknown and unsupervised network.

Marie-Christine and Maxime are on the trail of donors X and Y to understand their motivations and discover their possible genetic link.

The world of artisanal donations remains perilous in the wake of some mothers' accounts of inappropriate behaviour on the part of a donor.

Shocking new details about the investigation emerge and the number of children soars. The mothers wonder how to stop them.