1970s Australia: A 200-ton blue whale washes up on a local beach and the kids think it's the biggest thing that's ever happened in their lives. Behind closed doors, the Mums and Dads of this quiet suburban cul-de-sac celebrate in their own special way, by joining the sexual revolution.

It's a time of boxed wine, bad hair, bad styles, bad choices, but good times. And like the rotting whale, it's all about to go spectacularly wrong.