It’s a pleasure to see Jill Clayburgh on the big screen in a story about middle-aged love and sexuality, but she can’t rescue this alternately trite and implausible comedy. Jeffrey Tambor (The Larry Sanders Show) costars as a hefty, balding exterminator and jazz pianist who inexplicably has to fight off 25-year-old honeys; he falls hard for Clayburgh, a tart divorcee who’s been celibate for years, but their passionate romance is tripped up by his standard-issue fear of intimacy. The two leads appeared on a short-lived sitcom with Eric Schaeffer, who enjoyed the experience so much he wrote, produced, and directed this low-budget vehicle for them. The story harks back to Clayburgh’s signature films, An Unmarried Woman and Starting Over, and after numerous supporting roles as someone’s mother, she gives a smart and sexy performance. Unfortunately the narrative offers little insight into the problems of love in autumn, and it’s clotted with gags that are frequently illogical or unmotivated. With Bill Duke, Caroline Aaron, and Sandy Duncan. 97 min.