Chasing Shadows: Season 1, Episode 2

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Sean discovers that Taylor was hiding a secret from her school, friends and family as he finds out that Taylor was a member of an online suicide ‘social network’. After he finds out that several other members of the network have recently committed suicide he discovers some unsettling correspondences between the deaths. Sean believes that a serial killer, posing as a teenage girl, is preying on them on the network and killing them before making it look like they have committed suicide.