Mais tells Ovary Actor about the unfortunate death of Dan Andersson at the Hotel Hellman. Later, Ovary Actor takes a stroll back in time to 1999. 

R. H. Creel. "Cyanide Gas for the Destruction of Insects: With Special Reference to Mosquitoes, Fleas, Body Lice, and Bedbugs." Public Health Reports (1896-1970) 31, no. 23 (1916): 1464-475. Accessed January 11, 2021. doi:10.2307/4573707.

https://en.m.wikipedia.org/wiki/Zyklon_B

https://www.pctonline.com/article/-bed-bug-supplement--lessons-from-the-past/

https://en.m.wikipedia.org/wiki/Dan_Andersson