Square Dance (1987)

Gemma is 13 years old lives and with her grandpa in the country, she has for many years. One day her mother shows up, and wants to take Gemma to the city. Her mother is married now, and can provide for Gemma. Gemma goes with her mother. In the city she gets to know Rory, a mentally disabled boy. They play together, imagining that they are married.