Antero (Kari-Pekka Toivonen ) and Venla (Minna Haapkyla ) are a modern, long-time unmarried couple in Finland. But their relationship is in crisis: Venla wants them to marry and have a family. Antero is fine with marrying, but definitely does not want children as he believes it will interfere with his success in sports.

Fearful of losing Venla, Antero proposes, but secretly, he gets a vasectomy. Frustrated and angry, Venla concocts a plan to have an "after hours" insemination at the fertility clinic where she works. However, she begins to develop feelings for Satu (Minttu Mustakalio ), the sympathetic female doctor in on the scheme.