The Lakeside Murder Case (2004)

Plot

Three couples and their children retreat to a lakeside cottage, hoping to prepare for a prestigious high school entrance exam with the aid of a private tutor. Tensions rise as the pressure mounts, but the situation takes a dark turn when one wife reveals a shocking secret to her husband: she has murdered his mistress. As the group grapples with this confession, their idyllic getaway spirals into a chilling exploration of betrayal and the lengths people will go to protect their families. Secrets unravel, testing loyalties and relationships in unexpected ways.