Tom and Eddie are two young brothers, sons of Dan and Ellen Biggs - a high-powered attorney and his socialite wife - who head a dysfunctional family cobbled together by deceit and a thirst for success. Dulcie is their nanny, a young woman hired to take charge of the two boys, especially Eddie whose behavior is unpredictable at best.After Eddie is sent away following an exceptionally violent outburst, Ellen falls desperately ill, prompting Dulcie to move into the house at Dan's request. The two begin a torrid affair, but when Dan turns up dead, Tom is arrested for the murder after he is seen hiding evidence.Refusing to finger who he believes is the real killer, Tom is brought to trial. But as the drama unfolds, the identity of the murderer becomes increasingly unclear, even to Tom who is left to fear for his own life. It is in the attic where all scores are settled, and so is the killer's identity... once and for all.