A BYOB MOVIE

Zoey Deutch as a whirlwind bundle of tics and sexy neuroses named Erica. But the opening scene finds her delivering sexual favours to a cop, then shaking him down after making a video of the encounter, something she apparently does regularly. Is she a crime-fighter, a blackmailer, or a nymphomaniac with a head for business?

Erica’s dad is in jail, and her mom (the always game Kathryn Hahn) is engaged to a sweet guy (Tim Heidecker) with a son named Luke, played by Joey Morgan. Eighteen-year-old Luke is fresh out of rehab, and eventually confides to Erica why he’s so messed up. (Would that she could lose the sarcastic edge long enough to do the same.) He says he was molested by a teacher. Erica makes it her mission to find the culprit and make him pay.

The plan puts her on a collision course with single guy Will (Adam Scott), whom she’s long been infatuated with as he frequents the bowling alley where she and her friends hang out. But is Will really a pedophile? He doesn’t scan that way when she literally runs into him in the grocery store. And, unsolicited, he offers his own take on what happened between him and Luke.

Winkler is clearly trying to push some buttons with Flower. In addition to Erica’s feelings for the twice-her-age Will, she has a crush on her new stepbrother-to-be, and an oddball justification for her out-of-control sexuality: “It’s called feminism,” she proclaims. And then, tellingly, “It’s 2016.” Well, it used to be.

There’s a perfect moment in the movie when Erica, trying to set Will up for a fall, suggests he teach her how to bowl. He warily agrees, and then, apologizing, puts his hands on her to position her body for the throw. He’s clearly not feeling anything except a kind of paternal, professorial impulse. Her face, on the other hand, registers a slurry of confused, hormonal desires. The movie knows what’s going on in this moment. And then she tosses the ball down the alley, and it’s gone.