If you’re looking for great, free mystery movies that will keep you engaged from the second they start, then we’ve got you covered. We’ve pulled together a list of some great free mystery ...

Adrian Scarborough stars in “The Chelsea Detective.” (Jon Hall/AcornTV/TNS) Number of seasons: Two (four 90-minute episodes per season, plus a Christmas special that premiered earlier this month).

With the holidays upon us, you might be looking to curl up with a British detective show. The kind of quietly straightforward procedural that is occasionally wry, occasionally laden with gloom ...