Castle (2009)

S3E14 Lucky Stiff

When a lottery winner is found murdered, Castle and Beckett find themselves surrounded by a host of suspects, all fueled by jealousy and resentment over the victim's drastic change in fortune. While the precinct is alive with wild dreams of what the detectives might do if they struck it rich, Martha grapples with the unexpected inheritance that comes her way, feeling unworthy of the newfound wealth.