Elya, 20, is a student and a future ecologist. One day, Matvey, the head of a construction company, came to her university to discuss the development plan for an old forest park. Elya did not hesitate to crush his project. Matvey is very interested in girls' confidence, And used his usual influence method - he just tried to ; purchase She, but Elya doesn't need a sponsor. Then, Matvey was surprised by her indestructibility and placed a bet on Elya: romantic seven days according to his rules. If the girl still decides to leave after that, he will refuse to build a skyscraper in the forest park. When Matvey really paused design work, she agreed. Elya thinks she's a bit like the movie 'Beautiful Woman' The female protagonist in, but it turns out that Matvey is not the person she imagined.
一天晚上，当她下班回家时，加贺美害怕发现千惠躺在血泊中，但他很快意识到，他的妻子正在用这种方法让他高兴。本来以为这只是一时兴起，没想到，在那之后的每一天，千惠都会以各种方式死在家和美面前。嘉禾美努力配合妻子的表演，同时也在思考千惠行为背后的真实含义。为此，他向职场好友佐野（大谷良弘饰演）倾吐苦楚，但对方看似幸福的婚姻也有着不可逾越的鸿沟。妻子的表演还在继续，他们的婚姻将走向何方。。。这部电影是根据2010年提问者在日本雅虎智慧包上写的一个问题改编的，当时妻子的特殊行为在网上引起了巨大反响。
三人回忆起小学时光，约定到曾经的游泳馆去。在废弃的游泳馆里，他们居然遇到了归国的松冈凛（宫野真守 配音）。意料之外的是，昔日战友凛性情大变，还对遥发起挑战，结果遥输给了他。 遥、真琴和渚决定成立游泳部，经过多番努力后，终于招募到了新成员龙崎怜（平川大辅 配音），他们以县大赛冠军为目标，进行紧张的集训。另一方面，凛所在的鲛柄学院游泳部也在为大赛作准备。他们约定，要在赛场上决一高下。充满激情和活力的游泳部，在这个夏天，开始了关于友情与青春的Free!故事。
