Becca (Anna Kendrick), a newcomer to Barton University, accidentally joins the school's Acapella Women's Bel Canto Choir. The club gathers various female members who are good, bad and weird. The only thing in common is that they can sing a cappella. It sounds like a natural beauty. Members of the club include: "Fat Amy" who thinks she has the best singing voice and is very confident (Rebel Wilson), Oberly, who is often rude and stubborn, but is actually anxious (Anna Camp), Chloe, the spiritual pillar of the league (Brittany Snow), the sexually abusive singer Stacy (Alexis Knapp), the man with a touching voice (Ester Dean), and Hanamee Lee, whose voice is as small as a mosquito but whose impromptu rap amazes everyone. How did Becca, who is out of place on campus, use her amazing talent to change Acapella's traditional performing methods? How to lead this group of girls to compete against the fiercely competitive national bel canto group...