Butterfly is about the acrimonious relationship between separated parents, Vicky and Stephen, and their division in opinion over how to support their gender variant child, Max. From a young age, their now 11-year-old son has identified as a girl and presented signs of gender dysphoria. When Max was 8, Stephen had walked out on his family, unable to understand or cope with his son's gender issues. But when Max self-harms, Stephen seizes the opportunity to return to live at the family home and support his son. What unfolds for all the family members involved is the greatest challenge and test of love and understanding imaginable.