Two best friends with MBAs are bored in their jobs and start a travel business for bachelor parties in Budapest.

But today, they are very unhappy at their respective workplaces: Vincent works for a multinational corporation where he has no recognition, while Arnaud flounders at a firm run by his wife's father.

Lamenting over how their bachelor party should have been held there instead, Arnaud then comes up with the idea of creating a travel agency in partnership with Vincent that would organize getaway trips for French bachelor parties in Budapest: a city filled with oversized nightclubs where alcohol flows freely.

Vincent and Arnaud subsequently resign from their respective jobs and embark on this unprecedented adventure of starting up their new business venture, "Crazy Trips".

They make repeated trips back and forth between Paris and Budapest and put their fraternal friendship as well as their marriages to the test.