: Back in New York, Alexis throws a party at the loft that spirals out of control while her father is away. Trivia & Fun Facts
: About seven minutes into the episode, Ryan is seen checking his watch twice in identical motions due to a editing cut. [S4E8] Heartbreak Hotel
The records also mistakenly list Castle with brown eyes, though Nathan Fillion famously has blue eyes. : Back in New York, Alexis throws a
Castle's home address is listed as in casino records, a reference to Green Lantern co-creator John Broome (Fillion has voiced Hal Jordan in animated films). Castle's home address is listed as in casino
: Castle and Esposito attempt to throw an impromptu bachelor party for Ryan in Atlantic City.
: The victim, Sam Siegel (a nod to real-life mobster "Bugsy" Siegel), was being blackmailed after $10 million was stolen from his casino.
: Sam's ex-wife eventually confesses to the murder. She had been forced at gunpoint to sign over a co-owned building to Sam and used the theft as cover to kill him. Subplots :