On board an old plane, Pedro Infante and Captain Vidal fight with the controls, as they are going into a tailspin. Pedro's anguished look takes us to the previous day. Pedro agrees with María Luisa to end the bigamy lawsuit.

Culiacán 1937, Pedro entertains a party, María Luisa and María Izaguirre, do not take their eyes off him. Pedro invites María Luisa to dance, without suspecting that with her he will experience the happiest moments of her life, but also her greatest disappointments.