Sentence:  "Night of January 16th" is the story of a woman on trial for pushing her wealthy boss-lover from a Manhattan <WSD>penthouse</WSD>. 
Meaning of the word marked with <WSD> tags:  An apartment or suite found on an upper floor, or floors, of a tall building, especially one that is expensive or luxurious with panoramic views. Sometimes these are located just under "penthouse mechanical" floors.