Credit: Amazon Studios

All parents have their secrets. Some smoke cigarettes behind their childrens’ backs; others lie about their past recreational drug use. In Amazon’s Transparent though, Jeffrey Tambor’s Mort has a much bigger secret: As one of his children, played by Gaby Hoffmann says, “Dad is a woman.”

Mort’s three grown children are finding out their father’s identity for the first time while their mom is more aware of her spouse’s feminine taste—although she’s under the impression it’s a simple game of dress-up. “It’s his thing; it’s his little private kink,” Mort’s wife, played by Judith Light, says. But Mort’s affinity for dressing in women’s clothing is more than simply a “kink.” “My whole life I’ve been dressing up like a man,” she says in tender moment with her daughter. “This is me.”

Transparent was created by Jill Soloway, who won the Directing Award at 2013’s Sundance Festival and has written for multiple shows including Six Feet Under and Grey’s Anatomy. Along with Hoffmann, Jay Duplass and Amy Landecker play Mort’s children while Melora Hardin, Carrie Brownstein, and Rob Huebel have supporting roles.

Transparent will be available for streaming on Amazon Prime Sept. 26.