The Night Shift saga continues with Black Friday. It's been a month since nineteen-year-old Daniel Gale survived the brutal attack that almost cost him everything that he loved. As the culprit waits behind bars for a court date, Daniel and Mary spend every night shift researching Willard's history as a vaudeville theater and its main act, a ruined magician. They are searching for answers that will unlock the mystery of Mary's existence so she can finally escape the luxurious department store.

But an untimely death of an ally results in a shocking letter of confession from beyond the grave, making both Daniel and Mary question everything they thought was true. Under the watchful eye of a strict new night supervisor, Daniel desperately enlists assistance from a dubious source, unwilling to give up on saving Mary. However, his hope is soon shattered when new clues reveal the disturbing truth of Mary’s past—a truth that may destroy them both.