Lucie and Ines love each other and want to have a child, but they are missing something. After five attempts at MAP, they leave for a final test in Belgium. Then begins a crazy quest to find THE seed.

One night, Leo, a Spaniard working in Brussels as a subway driver, sees a young man on the edge of the platform, just before he falls onto the tracks.

On Christmas eve, Serge is the only on-call emergency doctor available. Struck by a crippling back-ache, he gets help from a pizza delivery boy who will need to step in the doctor's shoes.