Alice is in a dimension known as Maravilhas - which is already in a post-apocalyptic period and the protagonist is looking for her beloved Glenda. During her search she allies herself with an old love of the two - Hatter - to face the Cult of Hearts.
A documentary about two 'conventional' couples that swapped partners and lived in a group marriage in the early 70s, hoping to pioneer an alternative to divorce and the way people would live in the future.