There aren't many French movies that you can rightly consider as guilty pleasures, but the original Crimson Rivers, a baffling yet highly entertaining thriller that has become a cult favorite. Wish I could say as much of the sequel, which is pretty much nonsense from the first frame, as our mismatched cop heroes (Jean Reno and some other guy -- a new partner) investigate strange goings on inside a remote abbey. Before the end the mystery will entwine Nazis, amphetamine addicts, creepy dudes in robes, and, uh, the Maginot Line. Nudge me if you get it.

Aka Les Rivières pourpres II - Les anges de l'apocalypse.