The Escape of the Seven

The Gathering of the Seven (1x7)

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After learning that Nam Chul-woo was the detective in Da-mi's murder, La-hui senses something out of place and gets Jin-mo to check on Lee Hwi-so. Meanwhile, Mo-ne's guilty conscience haunts her while her relationship with La-hui deteriorates. Later, Matthew gathers the seven survivors and watches them struggle and blame each other for their survival.