[s4e8] Heartbreak Hotel -

: About seven minutes into the episode, Ryan is seen checking his watch twice in identical motions due to a editing cut.

: The victim, Sam Siegel (a nod to real-life mobster "Bugsy" Siegel), was being blackmailed after $10 million was stolen from his casino. [S4E8] Heartbreak Hotel

: 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 : : About seven minutes into the episode, Ryan

: Castle and Esposito attempt to throw an impromptu bachelor party for Ryan in Atlantic City. She had been forced at gunpoint to sign

: When Sam Siegel, the co-owner of an Atlantic City casino, is found murdered in an abandoned warehouse in New York, the team must split their investigation between the two cities.