[2] The film stars Nico Tortorella and Juan Pablo Di Pace as Thomas and Oscar, a gay couple who have spent a year as foster parent to a six year old boy whose mother was in jail; however, when she is released and regains custody of her son, Thomas and Oscar are forced to confront their very different visions for what they want out of life when they find themselves in disagreement on whether to pursue true parenthood.

[3] The cast also includes Emily Hampshire as Leah, Thomas's friend who is also grappling with queer parenthood as she has recently suffered a miscarriage, as well as Heather Matarazzo, Cloie Wyatt Taylor, Jake Choi, Garrett Clayton, Carl Clemons-Hopkins, Travis DuBridge, Colleen Foy, Jude Friedman, Annie Funke, Khalilah Joi and Jeanine Harrington in supporting roles.

When they have to return their first foster child, Arthur, to his birth mother, who has been released from prison after a year, they ask themselves how to proceed with their family planning and realize that they have different ideas about it after this experience.

[5] Garrett Clayton and Matthew Postlethwaite, who previously starred as Gilbert Bradley and Gordon Bowsher in The Letter Men, can be seen in the roles of Jake and Sam.

[14] Film Threat's Andrew Stover writes in his review that Nico Tortorella impresses with his undeniable charm and winning smile as the central character in The Mattachine Family, even in moments where his pain over the loss of Arthur comes to the fore.