When his big-hearted ex-mother-in-law dies of lung cancer, earnest mechanic Monty (IDRIS ELBA) moves his three young daughters into his one-bedroom apartment. To cover increased costs, he takes a second job as a driver for high-priced, highly successful lawyer, Julia (GABRIELLE UNION). Despite initial tensions -- he thinks she's stuck up, she thinks he's "common" -- she soon feels sympathy when she sees the troubles he faces as he tries to keep his girls from his selfish ex, Jenny (TASHA SMITH), now living with a local drug dealer and "gangsta," Joe (GARY STURGIS).
At the same time that Julia agrees to represent the girls in court (insisting she will out for their best interests, rather than any of the adults'), she's having trouble meeting a "decent black man" to date. Repeatedly frustrated by the blind dates set up her friends Brenda (TERRI J. VAUGHN) and Cynthia (TRACEE ELLIS ROSS), Julia is pleasantly surprised to find that she honestly likes Monty, who treats her well and, even better, treats his daughters "like princesses." Their romance runs into troubles, though, namely, her friends' snobbish complaint that she's "sleeping around with the help."
The couple also has to win the custody case, which turns urgent when Monty finds out that not only is Jenny a reckless mother, but Joe is also abusive, instructing Sierra (SIERRA AYLINA McCLAIN) to sell marijuana, hitting China (CHINA ANNE McCLAIN), and generally scaring Lauryn (LAURYN ALISA McCLAIN). Alone after a fight with Julia, Monty makes a desperate decision, assaulting Joe and Jenny (literally crashing their car with his) and facing the brutality of Joe's gang. The neighbors then join this violence, long weary of Joe disrupting their own lives.