Set among a family of private ambulance drivers in Mexico City, the Apple TV+ series is a thoughtful and cinematic adaptation of a 2019 documentary.

"Midnight Family," on Apple TV+, is a Mexican drama (in Spanish, with subtitles or dubbed) about a family that runs a private ambulance. There aren't enough ambulances for all the emergencies in Mexico City, so bootleg paramedics blare their own sirens and pitch in.

Our heroine is Marigaby (Renata Vaca), who splits her time between medical school and working with her father and brothers on the ambulance. She is passionate about medicine but spread awfully thin -- eager to keep the hands-on rush of in-the-field emergency care but desperate to be a proper doctor. She is tired of being looked down on by hospital employees, tired of having to solicit payments from patients mid-ride.

Her older brother, Marcus (Diego Calva), likes the ambulance fine but mostly thinks about his girlfriend. Her little brother, Julito (Sergio Bautista), is just a kid, but he handles all the crises with precocious aplomb. Her father (Joaquín Cosío) does not take great care of himself and relies on Julito for probably too much. Her mother (Dolores Heredia) is warily inching her way back into the picture.

The show is based on a 2019 documentary of the same name, but the vibe of this TV adaptation is less gritty realism than just solid medical drama. Episode 3, about the 2017 earthquake that killed hundreds of people, has both a bleak, broad grounding and also a weepy individual through line, as all good natural disaster episodes do. Mercifully, this is fresher and more energetic than contemporary network doctor shows and also more cinematic. The nighttime color palate glows, sometimes radiating warmth but other times emitting a kind of woozy menace. Scenes set in traffic don't feel too phony baloney, even if some characters feel pat.

Like many other medical dramas, the show gets flabbier the farther it gets from the hospital, or in this case, the ambulance. The domestic plotlines are a mixed bag: Marcus's relationship woes are not hugely compelling, though the potential for rekindled romance between the separated parents has a fraught charm.

There are graver sins than being reminiscent of "Grey's Anatomy," though the pointed voice-overs and rule-breaking romances here add to the similarities. If "Midnight" is a little predictable, so be it; it's still quite a ride.