Two struggling pals dress as police officers for a costume party and become neighborhood sensations. But when these newly-minted "heroes" get tangled in a real life web of mobsters and dirty detectives, they must put their fake badges on the line.
Beca, a freshman at Barden University, is cajoled into joining The Bellas, her school's all-girls singing group. Injecting some much needed energy into their repertoire, The Bellas take on their male rivals in a campus competition.
Ben needs to make a woman fall in love with him in 10 days, Andie needs to lose a guy in 10 days. As fate would have it they meet each other at a bar and proceed to spend the next 10 days attempting to fulfil their assignments, with unintended results.