Warning: Spoilers ahead for Teacup episodes 1-4!

Peacock's new Stephen King-endorsed horror television series Teacup has unfolded a mystery at breakneck speed, and introduced far more questions than answers by the end of episode 4. The basic premise of the show was established by the end of Teacup episode 2, while episodes 3 and 4 introduced some new players into the isolated farm setting, each with questionable intent. So far Teacup has built tension with distrust and paranoia, both due to the invisible threat beyond the blue line and due to the pre-existing relationships between the neighbors trapped on the Chenoweth farm in Georgia.

Episodes 3 and 4 of Teacup saw Meryl and Nicholas become more familiar with the entity that inhabits Arlo's mind, known as "Harbinger" due to his constant warnings. Harbinger might have introduced a way for everyone trapped on the Chenoweth farm to cross the blue line safely, but its dangerous...