As an investigative reporter, Fletch does some sneaky things, mostly impersonating others, to get information. On the other hand, he has the public's best interest (and his career) in mind.
Fletch knees a guy in the groin. Someone hires Fletch to kill him. A character tries to kill his wife and Fletch.
Fletch comes onto, propositions, and kisses a married woman. He makes remarks that make it clear he has slept with her. He says "nice piece of ass" and "pimp" and makes slightly lewd remark about his large "endowment."
PG-13-level cursing: "bitch," "assface," "ass," "assh--e," "asswipe," "s--t," "crap," "hell," "Jesus H. Christ"
Los Angeles Lakers and their merchandise are featured fairly prominently; also Coors beer and Miracle Whip in one scene.
Characters drink champagne, beer, and wine in a few scenes; Drugs are discussed and a drug dealer/supplier exposed.