As the title suggests, “Dumb and Dumber To” is about as idiotic as movies get. This sequel to the comedy classic sees Jim Carrey and Jeff Daniels reprising their roles as blockhead buddies Lloyd and Harry. Goofiness abounds but sincere laughs are hard to find. 

Half the humor in “Dumb and Dumber To” comes from gags related to the protagonists’ over-the-top stupidity. The other half is gross-out humor. Playing with only these two notes for its entire runtime, the movie quickly gets stale and repetitive. Occasionally a joke truly shines, but the good bits are lost in a mire of moronic gags that don’t even come close to hitting the mark.

The movie’s plot is only there to string all the bad puns and fart jokes together. All the effort must have been funneled into cultivating the movie’s fourth-grade-caliber sense of humor because the story is devoid of everything but stupid gags that make Mad magazine seem like high comedy. When the duo finds out that Harry has a long-lost daughter, they go on a road trip to track her down. As they search for her, the movie slowly proceeds from one stupid setup to the next.

The film’s setup reveals that Lloyd has been in a mental hospital faking catatonia since 1994. After a 20-year absence, he rejoins society with no difficulty. Seeing him adjust to cell phones and the Internet could have been interesting, but the movie wastes what little potential it has when it leaves this idea unexplored.

“Dumb and Dumber To” brings back the buffoonery but delivers more cringes than laughs. Fans of the original have been waiting 20 years for what ended up as a barrage of childish and predictable jokes that, by the 10-minute mark, is already wearing your patience dangerously thin.