Kyle Cooke is a kind-hearted young boy and a gifted baseball player. When his father, Ted, is laid off and forced to take a low-level job in a new state just to make ends meet, Kyle and his family are uprooted from their fortable suburban lifestyle. Ted hopes that Kyles acclimation will be made easier once he gets involved with the local teams but those plans are quickly dashed when Kyle bees the victim of bullying and nepotism. Realizing Kyle will never get a chance to pursue his dream of playing in the twelve-year-old World Series if he stays in the local league, Ted finagles a way to get Kyle on a team in an opposing district. Kyle, understanding this is his one and only shot, uses the dejection of being cut from his towns all-star team as motivation to bee the best twelve year-old player in the state - possibly the world. Ultimately, he faces his former team in the state championship where he discovers a greatness he didnt even know he possessed.

除了开心麻花的马丽，本片主演梁超来自白眉工作室、于洋来自本山传媒、卜钰来自大碗娱乐，堪称喜剧界半壁江山的四大喜剧团队派出台柱集结本片，再加上马精武、张双利、游本昌、杨新铭四位实力演技派老戏骨助阵，《测谎人》堪称档期内豪华喜剧阵容