Nayoung, a newlywed bride, looks forward to welcoming her husband back home after working overnight as a police detective. But she comes home only to learn he had been murdered. Unable to trust the police, she takes matters into her own hands to uncover the truth. Too bad for them, though. Nayoung turns out to be a former North Korean spy and notorious elite assassin known to intelligence agencies by the code name "Tarantula." How will the Tarantula avenge her husband's death?
Mysterious black circles have started appearing all over the world, and whoever falls in doesn't come back out. Then one day, a black circle swallows an entire school and everyone in it, turning it into a twisted maze of nightmares. Will Doyun and his classmates find a way out?
In middle school, Cheol Im was a living legend for his fighting prowess. Years later, he learns that his childhood friend from the orphanage, Sol Kim, was bullied to death. Determined to get revenge, Cheol returns to school. But his plans take an unexpected turn when Ha-yun Seo, a fellow orphan who was like a sister to him, is assigned as a teacher at that very same school. Now, Cheol is forced to choose between his thirst for revenge and his loyalty to the person who once protected him. This series contains themes regarding bullying, harassment, suicide and graphic violence that may not be suitable for all readers. Viewer discretion is advised. If you or someone you know is struggling or in crisis, please reach out for help at Crisis Text Line (http://crisistextline.org/).