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Lindy Sampson is a daring and brilliant 21-year-old hacker who's come to NYC to search for her abducted sister. But when her best friend signs her up for a dating app, Lindy begins to suspect that one of the guys she just met may be a dangerous stalker.

Reeling from a tragic murder, Lindy is determined to find the killer by going on dates with two suspects. But as she begins to let new people into her life, she puts herself and her friends on a dangerous killer's radar.

After a fresh abduction, Lindy's obsession with finding the killer grows. Her worlds collide when Sophia throws a party while Jake starts to develop a crush on Lindy, though he's emerged as the lead suspect in the case.

Lindy looks into the disappearance of five teens which leads Lindy and Tommy to an unexpected venue.

A media mogul hosts a party at IRL in an effort to encourage New Yorkers to not be scared.

Tommy asks Lindy to investigate whether a busy New York City hospital has been hacked.

A couple is attacked in an apartment they rented online, and Jake asks Lindy to help him.

Lindy is drawn into the past by a message from the killer, and also unearths shocking revelations about her case.

Lindy turns to Jake for help in investigating her sister's abduction; and Tommy and Connor uncover information about the serial killer on the dark Internet.

Lindy's search leads her to the burial site for New York's unidentified and unclaimed dead for a showdown with the killer.