Knock Knock Ghost (2015)

S1E13 The Night the Lights Went Out in Vegas

Las Vegas comes to a standstill when a massive blackout engulfs the Strip, leaving the Montecito in lockdown as a hotel guest is shot dead on the casino floor. Amid the chaos, detectives Nessa and Delinda race against time to uncover the identity of the murderer, while a paranoid Sam increasingly believes the incident is part of a larger conspiracy. Meanwhile, Danny and Mary find themselves trapped together, reconnecting over past emotions, while a panicked Mike desperately seeks a way to escape the surveillance room with Ed.