Sensible Olivia Sinclair and Oliver Sterling, CEO of Sterling Group, are happily married. Their peace shatters when Olivia's half-sister Chloe Sinclair and mother Valerie Sinclair stay with the Sterling family. Seemingly sweet, Chloe secretly covets Oliver and is jealous of Olivia, plotting to steal her life. One night, Chloe drugs Olivia to seduce Oliver but is bluntly rejected. Believing she is better looking and more vibrant than Olivia, Chloe refuses to give up and escalates her schemes.