Agent Red finds herself entangled in the lives of the Montgomery family as an undercover agent. Her mission is to uncover the secrets behind the family's wealth and the suspicious circumstances surrounding Mr. Montgomery's death. Posing as a maid, "Ruby", she navigates the estate, meeting the three Montgomery brothers: Kieran, the innocent one; Alexander, the charming one; and Cale, the enigmatic eldest. Ruby must maintain her cover while uncovering the truth that could shatter their façade