David (Vince Vaughn) is a nice guy but he's somewhat of an underachiever. He could work harder at his job as well as in his relationship with his newly pregnant girlfriend Emma (Cobie Smulders) who doesn't believe that David is the right man to be a father. Things change even more for David when he finds out that he's the biological father of 533 kids from donating mass amounts of sperm in his 20's. Of those 533, 142 of the kids have filed a lawsuit against him to reveal his identity. Now David must decide if he should reveal himself to his many kids or keep his identity a secret.
There really isn't a whole lot to say about this film because while it's not particularly bad it's definitely far from good. In the early goings the film is just fine, it has some pretty decent laughs and the story is somewhat interesting. But as it pushes along the tone changes to be more sentimental throughout the latter half and the story just doesn't work quite as well when it gets a little too serious. The sentimentality here is just a little too schmaltzy and feels overdone when it could have been handled a lot better.
Despite it's shortcomings Vince Vaughn actually gives one of his better performances in quite some time. His performance feels genuine and not phoned in like a lot of his recent performances have felt. However, other than the always reliable Chris Pratt the rest of the cast doesn't do much to help. The rest of the cast doesn't get a chance to do much as they all have pretty limited screentime and Cobie Smulders is underused leaving her character to feel almost pointless at times.
Delivery Man has a few laughs here and there and a surprisingly good performance from Vince Vaughn but it ultimately falls flat in a lot of areas keeping it from being a decent film.