First Wave S02E04 - Susperience

Cade is led to a group of empaths with the ability to influence the thoughts of others. While investigating, he begins to realize the group is under the covert control of a murderous alien.

Quatrain 23, Century 3: "The two-sighted will meet death in sleep / Purged from the nightmare of a hidden enemy / Barricades protect spurious sleep / And the spectre is lanced with a common blade".