Harry Lockhart (Robert Downey Jr.) is a petty thief discovered by movie people when he ducks into an audition room on the run from police. Moved out to L.A. and taking detective lessons for a movie role, Harry reconnects with his childhood sweetheart Harmony Lane (Michelle Monaghan). Mistaking him for a P.I., Harmony hires Harry to prove her sister's suicide was murder. Hijinks ensue.
Having panned writer-director Shane Black's ludicrous dialog in The Last Boy Scout, I was pleased to find Kiss Kiss Bang Bang nicely understated. The plot was a mostly-plausible mix of comedy and noir, the far-fetched bits carried off by Downey's deadpan fast-talk.