If you have read the comics you will understand what kind of person Deadpool is. He is a guy who just know how to make fun of every situation even in the worst of timings and is the most comical character in all of Marvel universe. After the movie wolverine who just ruined the character of Deadpool this movie does the best justice to this character
The movie is about a person or who is dying of cancer and have no hope of living as the cancer is just almost in every part of his body and there are no ways he is going to survive the cancer unless a government person comes in and makes him an offer he can't refuse.
He offers him immortality or never dying body in condition of volunteering in the experiment. With nothing to lose he volunteers. He does survives but at the cost of total body mutilation. His mutation keeps him alive but the cancer also simultaneously decays his body.
The whole movie is just very entertaining and unless you are not watching the adult version there is no point of having fun as Deadpool jokes are full of comedy and vulgarity in a funny way.
I really enjoyed every part of the movie and not even once I got bored. You get immersed so much in the movie that you will not realise when the interval came the movie is really enjoyable but not really for family. So it is advised to watch it alone or with friends.
In all a total package of entertainment and I will totally recommend this movie. Its a really bang for a buck. The madness in this movie is simple awesome.