Helen (Goldie Hawn) has consistently felt overshadowed by her friend, the actress Madeline (Meryl Streep), but things truly fall apart for her when she finds that her fiancé—the well-known, albeit somewhat frumpy, plastic surgeon Dr. Menville (Bruce Willis)—has married Madeline instead. She spirals downward, gaining weight and losing her apartment while still clutching an ice cream container, eventually ending up in a mental institution where she develops a scheme for retribution. Simultaneously, the marriage itself begins to falter. Madeline turns to younger men for solace, but after being spurned by one of them, she unexpectedly encounters Chagall (Ian Ogilvy), who leads her to Lisle von Rhuman’s (Isabella Rossellini) domain—a seductive figure offering the promise of eternal youth. Naturally, there's a catch, and the question becomes whether Madeline will accept it. The film proves quite diverting for roughly the final forty-five minutes. Streep and Hawn seem to be having a good time as their actions take on a darkly humorous tone. Willis, now reduced to pounding drinks and tending to cadavers, also appears to be enjoying himself, while Rossellini delivers an over-the-top performance. The conclusion didn’t entirely resonate with me, but I'd describe it as "just" and the final moments were satisfying. It's a pleasant comedy where everyone seems to be at their best, featuring some sharp remarks that I appreciated.

Source on TMDB