The dude inside me was funny. I enjoyed the pace and the way they presented the story. I also love Jung Jin Young in this one and he proved to be a great actor.

However, the scenes with the mother and her ex boyfriend in the body of the young student, although laughable, were a bit off, as it wasn't easy to sympathize and actually imagine that the one talking was not the young student but the mafia boss. However, Jin Young played those scenes masterfully.

Overall, the movie was funny and it had a nice conclusion, as well as good performances.

So, seven out of ten.