François Traffaut's "Mississippi Siren" had an unconvincing plot. The screenplay required too much elasticity in suspension of disbelief. The plot went at a glacial pace. It started off in an interesting setting but soon drifted onto the shoals of melodrama that lacked logic or intelligence. What were the critics thinking? This one is overrated even to be described as a loser. Even Catherine Deneuvue, who charmed in "The Umbrellas of Cherbourg" and "Belle Doe Jour," managed to be simply annoying. <br /><br />We rented this movie at the same time as we rented another Traffaut film. We watched this one first, and found it to be so bad that we sent the other one back unseen at the same time.