From the video’s Kickstarter page:

Squares is a documentary film about people who love to square dance.

Squares will be a documentary film about Varene Anderson, the filmmaker’s grandmother, who started the first National Square Dance Convention in Riverside, California in 1952 with her husband Carl Anderson, and two other couples. The filmmaker explores the fascinating world of square dancing, while also learning more about her own family’s connection to the national folk dance.