The plot of “Love Again” is so over-familiar I stopped streaming it not once but thrice to make certain I’d never seen it before.

It’s so forumulaic that I hope writer-director James C. Strouse is blushing if he’s walking a Screen Actor’s Guild picket line. This movie could have been conceived, cast and scripted by AI, almost as easily as, say, a movie review generator AI could have panned it.

But for what it is, a sort of wistful, sad Hallmark romance with pretty leads who have little chemistry, it’s not terrible. Random laughs are scattered throughout.

“Love Again” stars Priyanka Chopra Jonas (“Baywatch,” “The Matrix Resurrecions”) as a grieving woman who can’t get over her dead, about-to-propose boyfriend, and features Priyanka’s real-lie husband Nick Jonas as a gym-rat personal trainer dating app set-up who is Mr. Wrong with a capital “W.”

And the idea of casting the ever-emotive singer Céline Dion as a slightly surlier version of herself, making our leading man (Sam Heughan of “To Olivia”) “grow up” — “I’m 35!” — “So there’s still TIME!” — is fun.

Those gimmicks were the chief appeal of this limp late spring release, which nobody saw, but which is now finding an audience on Netflix thank to palpitating Jonas Brothers (and Priyanka) fans, and the unfortunate news about Céline Dion’s health.

Tell me if this plot doesn’t sound too familiar. Children’s book illustrator Mira has a mushy lunch with lover John (Arinzé Kene) only to witness him killed in an accident that happens right in front of her. Two years later, Mira’s not over this loss. But she starts texting John, and during a thunderstorm, those texts turn up on the phone of a slightly bitter, freshly-jilted New York Chronicle music journalist, Rob (Sam Heughan).

He doesn’t respond. But after figuring out these “I spend every day thinking of you” texts aren’t a prank, “catfishing” or anything of the sort, he becomes intrigued and maybe a bit obsessed. He attends the opera (“Orpheus & Eurydice”) hoping to find her, and is moved by the story on stage.

As he’s been assigned to write a profile about the culture’s “Celinaissance” — a Dion comeback — he finds himself scolded, insulted, cajoled and invited back among the land of the living and loving by the great romantic balladeer with the Big French Canadian voice.

When Rob finally “meets” Mira, the only questions are, “How long before he tells her? and “How bad will it look when she finds out?”

Yes, that “secret” that “we didn’t meet by accident” plot has been around since before “Meet John Doe” used it during The Great Depression. No, these leads don’t set off any real sparks, because there’s nothing flinty, nothing with a steel edge about this.

A major problem? Rob isn’t nearly cynical enough, and rubbing any unlikable edge off the character is Against the Law, as far as screen portrayals of jaded journalists go. Love, this jilted bore reminds us, “It’s just a bunch of pheromones that wear off. Then you get your heart ripped out, covered in bleach, stomped on” and “set on fire in front of your friends and family.”

Awww. Poor baby.

That’s the short summary review of the movie, too. “Poor baby.”

They had a formualic plat, a few good lines, a few cute scenes, and two fun cameos — Mr. Jonas, and a tasty Celia Imrie turn in which she pleasantly calls in an intern at her children’s book publishing house, recounts the young woman’s struggle to get to this job, and tells Mira she’ll FIRE the intern if Mira doesn’t sort out some good (not weepy) ideas for illustrations of a new book — pronto.

What they didn’t have was a movie as compelling as the various parts they pieced together.

Rating: PG-13 (Some profanity, sexual content)

Cast: Priyanka Chopra Jonas, Sam Heughan, Céline Dion, Sofia Barclay, Arinzé Kene, Russel Tovey, Steve Oram, Lydia West, Celia Imrie and Nick Jonas.

Credits: Scripted and directed by James C. Strouse. A Sony/Screen Gems release now on Netflix.

Running time: 1:44