If there's something strange in the neighborhood, who ya gonna call? Ant-Man!

Paul Rudd is joining Jason Reitman's "Ghostbusters" reboot/sequel, according to Variety.

The "Ant-Man" and "Avengers: Endgame" star will reportedly play a teacher in the movie.

The new "Ghostbusters" is an extension of the original movie, which was directed by Reitman's father, Ivan Reitman.

Not much is known about the plot, except that it focuses on a single mom (Carrie Coon) and her son (Finn Wolfhard of "Stranger Things"). Sigourney Weaver is returning as Dana Barrett.

“I’ve been wanting to work with Paul Rudd since my short film opened for ‘Wet Hot American Summer’ at Sundance," Reitman said. "I’m thrilled he’ll be joining this new chapter in the original Ghostbusters universe."

The movie begins production this summer and is slated to open in theaters July 10, 2020.