Every day without fail, Travis Devine puts on a cheap suit, grabs his faux-leather briefcase, and boards the 6:20 commuter train to Manhattan, where he works as an entry-level analyst at the city's most prestigious investment firm. Then one morning, Devine's tedious routine is shattered by an anonymous email: She is dead. Sara Ewes, Devine's coworker and former girlfriend, has been found hanging in a storage room of his office building, prompting the NYPD to come calling on him. If that wasn't enough, before the day is out, Devine receives another ominous visit, a confrontation that threatens to dredge up grim secrets from his past in the army unless he participates in a clandestine investigation into his firm.