Cat people tend to be unfairly maligned, but in this documentary, they’re heroes. According to the filmmakers, there are as many feral and abandoned cats living on New York City’s streets as there are people in residences, and since local government has failed to handle the problem, ordinary citizens have stepped in to help. The film follows four Brooklynites who engage in TNR (trap, neuter, release) efforts, giving up space in their homes and often spending money from their own pockets to tend to the tens of thousands of street cats that roam their borough alone. The volunteers’ collective aim is two-pronged: decrease the number of at-risk felines, and rehome as many of them as possible. But for all its good intentions, this shaggy doc elicits more heartbreak than hope; it’s difficult to watch a succession of humans surrender their cats to the Animal Care Centers of NYC, seemingly unconcerned by the knowledge their pets may be euthanized. Yet this crowd-funded portrait of urban animal activists—a labor of love itself—is commendable for spotlighting work that usually goes unseen and underacknowledged.