Three couples are staying at a lakeside cottage with their children. They want them to prepare intensely for a prestigious high school's entrance exam with the help of a private tutor. One night, one of the wives confesses to her husband that she has killed his mistress.
Lakeside Murder Case is a 2004 Japanese mystery film directed by Shinji Aoyama, starring Kōji Yakusho, Hiroko Yakushimaru and Etsushi Toyokawa.
