Anna and Marina are in love and they have been living together for over 10 years. Stefano and Tony, a gay couple, are their best friends. Since her childhood Marina has been really closed to Stefano. They are true friends: one soul in two bodies. Anna tells Marina that she would like to have a baby to strengthen their relationship. Marina reacts enthusiastically , but there is a problem: they both want to be mothers… They end up threatening each other to find an independent solution. Marina asks Stefano: artificial insemination could solve the problem, but its way too expensive. When Stefano suggests Marina to sleep with a man, she angrily rejects it and disappear. The couples arguments and the friends quarrels lead them to hospital where they realize their own mistake, facing the worrying consequences of their behavior.