Morgane is pregnant again. Karadec is also a possible father. Her children are urging her to have an abortion, but she is not yet sure whether this is an option for her. At the same time, Alexandra Collet, 42, a housewife with a hearing-impaired son, is found dead by her husband.

While her children force her to contact the potential fathers of her child, Morgane is called to new investigations: Antoine Broussin, 85 years old, author of crime novels, is found dead in a secret room of his house.