Stefan, a guy who falls in love too easily, finds himself enamored with the mysterious, engaged Katie, whose wedding is disrupted first by Stefan and then by everyone in the wedding party dying. This leads to a Hitchockian chase with the lovers fleeing the cops as they try to discover who actually killed Katie's in-laws (if she didn't do it herself). Like a lot of Hitchcock movies (notably Suspicion), Wedding Season's central romance would be doomed outside of Hollywoood logic, something the writers acknowledge that in a way Hitchock movies never do.
Meanwhile, flashbacks detail the Stefan and Katie's peculiar romance through a series of weddings they both attend.
This is all a lot of fun, wit lots of humor an suspense and an intelligent view of love. The leads and general cast are likable and there's a hilarious performance by Poppy Liu (inexplicably not currently credited in the IMDB listing) as an instagram-happy bride.
Except for the effect of a final, super-annoying twist in the last 30 seconds, the result is very satisfactory.
In spite of my aggravation with the ending, I recommend this.