1x7 - The Night Beyond the Tricornered Window

Hanzawa's wife has fallen ill due to Erika's curse. Though Mikado knows it was her work, his conscience won't let him tell Hanzawa anything. Erika and Sakaki raid COOLEAN. They hold Mikado down and interrogate him, asking "Why did you talk to the police?" Erika goes out of control and curses her own existence, poisoning herself.