A look at the lives of two teenage girls - inseparable friends Ginger and Rosa -- growing up in 1960s London as the Cuban Missile Crisis looms, and the pivotal event the comes to redefine their relationship.

On a trip to Paris Sally meets Pablo, a tango dancer. He starts teaching her to dance then she returns to London to work on some "projects". She visits Buenos Aires and learns more from Pablo's friends. Sally and Pablo meet again but this time their relationship changes, she realises they want different things from each other. On a trip to Buenos Aires they cement their friendship.