西虹市丙级球队大翔队的守门员王多鱼（沈腾 饰）因比赛失利被教练开除，一筹莫展之际王多鱼突然收到神秘人士金老板（张晨光 饰）的邀请，被告知自己竟然是保险大亨王老太爷（李立群 饰）的唯一继承人，遗产高达百亿！但是王老太爷给出了一个非常奇葩的条件，那就是要求王多鱼在一个月内花光十亿，还不能告诉身边人，否则失去继承权。王多鱼毫不犹豫签下了“军令状”，与好友庄强（张一鸣 饰）以及财务夏竹（宋芸桦 饰）一起开启了“挥金之旅”，即将成为西虹市首富的王多鱼，第一次感受到了做富人的快乐，同时也发现想要挥金如土实在没有那么简单！Wang DuoYu is a loser in life and a minor league football Goalkeeper. Unknown to him, he had a (recently deceased) rich Uncle from Taiwan. In order to test if Wang knows the value of money, he is given the task of disposing of 1b yuan in 30 days. Wang has to spent it legally and isn't allowed to have any assets to show for the at the end of the task. If Wang is successful, he gets to inherit his Grand Uncle's 30B yuan worth of assets. The biggest problem of all however, is that Wang is not allowed to tell anyone about the task, which create a lot of confusions to the people around him. He is also faced with the evil trustee company's bosses who desperately need him to fail in order to control the management of this huge assets.