A merry mashup of sisterly affection, parental disappointment, and bold action, Polite Society follows martial artist-in-training Ria Khan, who believes she must save her older sister Lena from her impending marriage. After enlisting the help of her friends, Ria attempts to pull off the most ambitious of all wedding heists in the name of independence and sisterhood.

Fraternal twins Nikki and Nora are forced back into each other's lives when they inherit a detective agency. As they solve a murder, they realize that their differences could be their greatest advantage.