Antero, a speed skater, and Venla, a psychologist, are a modern, long-time unmarried couple in Finland. But their relatioship is in crisis: Venla wants them to finally marry and have a family. Antero is fine with marrying, but definitely does not want children, particularly as he believes it will interfere with his success in sports. Fearful of losing Venla, Antero proposes, but secretly, he also gets a vasectomy. Frustrated and angry-and determined to have a child-Venla concocts a plan to have an "after hours" insemination at the fertility clinic where she works. But to her surprise, she begins to develop feelings for Satu, the sympathetic female doctor in on the scheme.