Scientists Kate and Mitch adopt a young chimp, Lulu, in pursuit of their research into the development of language. Growing fonder of Lulu than is perhaps scientific, Kate and Mitch could never have guessed at the creaking shifts of affection and desire that will be played out around her, the newly dark centre of their household. Comic, bizarre, perceptive and beautiful, Lulu explores the intricacies of love in the modern world.