Rogue's Gallery was Roger Smith's farewell to acting. Playing a rather seedy private eye whose cash flow is so bad, he's hocked his gun and before the film is over he's going to need it so he appropriates one from one of the bad guys. He also has to say farewell to his girl Friday secretary Mala Powers. It's such a contrast between this role and that cool and hip private eye who operated out of that cool address with Efrem Zimbalist, Jr. at 77 Sunset Boulevard.
For those who thought A.C. Lyles only did westerns, think again. Smith who was headed for early retirement because of health and management of wife Ann-Margret's career heads a typical A.C. Lyles cast of players past their salad days. It's psychiatrist Dennis Morgan who hires him to keep an eye on Greta Baldwin who was the fiancé of Smith's former friend who was killed in a skydiving accident. Morgan is worried about Baldwin committing suicide and he says for Smith to tail her. She exhibits certain behaviors in that direction. Shades of Vertigo.
Before it's over a whole lot of the geezer cast is involved in a nasty insurance racket and Smith has a few close calls due to lack of a firearm. It's an average mystery with shades of The Maltese Falcon as well.