在一个年末的夜晚，亚希子（菊地凛子饰）、惠（平岩纸饰）、香奈惠（吉田羊饰）三人侵入了社长奈津美（白石麻衣饰）的豪宅。时间追溯到一个月前，在家政公司工作的亚希子，从同事惠那里听说社长奈津美逃税，在家里放了大量的现金。平时对公司的方针和待遇抱有不满的亚希子，和惠的朋友香奈惠一起潜入社长的家意图盗走钱款，然而意想不到的事情却接连发生……

Afilmadaptationofaplaymadebyahighschooldramaclub,directedbyYamashitaNobuhiroofLindaLindaLinda(2006).It’sessentiallyacoming-of-agefilmaboutteenagersmadebyteenagers.Duringsummervacation,atahighschool,thePEteachermakesfemalestudentswhoskippedhisclasscleantheoutdoorswimmingpool.Thedrainedpoolisfullofsandblowninfromanearbybaseballfield,andthetaskofscoopingupthesandandputtingitinbucketsseemsmeaningless.Chizuru,whousedtobeunbeatableintheswimclubinmiddleschoolevenagainstboys,practicesimaginaryswimminginthesand-filledpool,whileKokoro,whoisseriousaboutcultivatingherfemininecharmbydiligentlyapplyingmakeup,doesn’tcareaboutcleaning.Withtheirownstories,Miku,whodiligentlypracticesdancemovestypicallyperformedbymen,andYui,whowastheswimclubcaptainlastyear,andtheothergirlsmeetandconverseonthepoolfloorunderthesummersun,whereunexpectedconflictsariseandresolveinunexpectedways.Throughafewhoursinadayatahighschool,thefilminterestinglyshowsthesensibilitiesanddesires,dreamsandhopes,angerandfrustrationofthattime.