A film of electric sonic and visual rhythms, Karimah Ashadu’s Machine Boys is one part 21st-century Scorpio Rising and one part incisive micro-ethnography. Intimately capturing Lagos’s sub-economy of motorcycle taxis—known locally as “Okada”—Ashadu zooms in on both the thundering, tricked-out machines and the bodies of the riders, whose performances of masculine bravado mask the precarity of their dangerous and illegal livelihoods.