The Wave is an interesting film starring Justin Long as a relatively square insurance broker who takes a powerful unknown hallucinogenic and as a result of this, experiences some pretty frightful hallucinations which are deftly portrayed and are intensely believable. However, even though the hallucinations are portrayed as well as you could expect from a B movie, it isn't without its sticking points.
What lets this film down is the execution of the storyline. While the overarching plot of the film is a relatively coherent one, the film muddily flits from one aspect of the story to the other, never making the film quite as believable as it could or should have been. The Wave allows too many loose ends, and the ending instead of completing the plot asks more questions than answers. Overall this is a decent film with some intense and intriguing scenes, however the execution of these themes lets the film down.