創業以来日本の高級ホテルの象徴ともいわれ、業界をリードしてきた老舗ホテル、プラトン。しかし競争激化に伴い、その経営は悪化していた。客数も落ち、従業員の士気も低下。そんな凋落したプラトンの総支配人としてある日、ひとりの男が招かれる。男の名は三枝克明(ディーン・フジオカ)。ホテル経営のプロで国内外の不振ホテルに現われては、その整理・売却に一役買うと噂された通称、ホテル座の怪人。就任わずか数カ月の間に、コンシェルジュ、レストラン、ウエディング部門など、さまざまな部署やサービスの現場に神出鬼没を繰り返しては、切り口鋭い業務改善を実践していく。従業員からは反発の声が上がり、混乱の渦にのまれるプラトン。しかし彼には隠された秘密と大きな別の目的があった。
Plato is a long-established hotel that has been said to be a symbol of high-class hotels in Japan since its establishment and has led the industry. However, with the intensification of competition, its management has deteriorated. The number of guests has fallen and the morale of the employees has also declined. One day, a man is invited to become the general manager of the fallen Plato. In just a few months since taking up his position, he has made sudden appearances at various departments and services, including the concierge, restaurant, and wedding department, implementing cutting-edge operational improvements. However, employees have voiced opposition to him, and Plato is caught in a whirlpool of confusion. However, he has a hidden secret and another major purpose.