Twenty-three-year-old Bua is a poor girl training to work as a nurse caring for the sick and the elderly. A community nurse takes her around to various houses to practise looking after patients in need of help. One night, she tells her indebted boyfriend Phai and his friend Der about a bed-ridden wealthy elderly woman she visited, and they came up with the idea to rob her mansion. Once inside, however, things are not what they expect.