After financier, Robert Green, is convicted of fraud for operating one of the largest Ponzi schemes in Canada, he commits suicide, leaving his 20-year-old son, Dereck, and wife, Esther, behind. Deeply troubled and confused, Dereck turns to alcohol and violence. When Esther makes an unsettling discovery in Dereck's room, she realizes she must confront her son before he permanently ruins his life. Astray follows the mother and son as they struggle to keep their broken family together.