Halloween events affect each world in profoundly different ways.

While some are putting on a mask to hide from reality, others are shedding theirs and confronting past choices.

Air Date: Monday, Oct. 18 (10:00PM – 11:00PM) on NBC.

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ORDINARY JOE -- "Mask On Mask Off" Episode 105 -- Pictured: James Wolk as Joe Kimbreau -- (Photo by: Fernando Decillis/NBC)