"Sweeney Todd: The Demon Barbers of 22 Jump Street"

From imdb and imdb:

In Victorian London, after making their way through high school (twice), big changes are in store for officers Schmidt (Jonah Hill) and Jenko (Channing Tatum) and the barber Benjamin Barker (Johnny Depp) when they go deep undercover at a local college.

But when Jenko meets a kindred spirit on the football team, Schmidt infiltrates the bohemian art major scene and Barker marries the gorgeous Lucy (Laura Michelle Kelly) with whom he has a lovely child, Johanna (Jayne Wisener), they begin to question their partnership.

Now they don't have to just crack the case of the corrupt Judge Turpin, who falsely accuses the barber of a crime that he did not commit - they have to figure out if Turpin is abusing Lucy later after gaining custody of her.

After fifteen years in exile, these three overgrown adolescents grow from freshmen into real men under the new identities of Sweeney Todd, seeking revenge against Turpin.

Finishing college and opening a barbershop above a butcher's might be the best thing that ever happened to them, initiating a crime rampage against those who made Barker suffer and lose his beloved family.