Alice has been living alone with her son Ryun since her husband passed away in an accident. She raised him well, so he managed to get a job at a top company and marry happily... or so she thought. His wife, Alice, hasn't done any housework since their marriage and spends every day just playing around. One day when Alice comes home drunk with a man friend, having a party without even asking permission, poor Ryun's mother can't take it anymore! She scolds Alice but instead of apologizing, Alice holds a grudge against her mom and comes up with a plan involving her new boyfriend...