Wendy sees things differently: she's fiercely independent, with a brilliant mind and a mischievous sense of hilarity. Wendy also has autism. To her, people are an indecipherable code and the world's a confusing place. Inspired by her no-nonsense caregiver, Wendy comes of age and escapes from her care home on the road trip of a lifetime to deliver her 500-page script to a writing competition.