Obsessed (2009, U.S.A.)

When successful financial advisor Derek Charles (Idris Elba) settles into a new Los Angeles neighbourhood with his loving wife Sharon(Beyonce Knowles) and young son Kyle, everything seems perfect. But when a beautiful temp, Lisa (Ali Larter), joins the firm, Derek’s life takes a strange turn. After a misunderstood encounter at the company holiday party, Lisa begins to spiral out of control – putting Derek’s career in jeopardy and Sharon’s marriage and life on the line.