On Jan. 19, 2023, Netflix released Junji Ito Maniac: Japanese Tales of the Macabre, which adapted some of the horror manga artist's most bizarre and horrific tales into an anime collection. Among the stories included was a tale called "The Hanging Balloons," a twisted and macabre story about a young girl trapped inside her home while a ballooned version of her own head taunts her to come outside. It quickly becomes obvious that there is a horrific theme in this story, one a lot of people tend to look away from and avoid talking about: suicide.
Source:https://www.cbr.com/junji-ito-maniac-hanging-balloons-hidden-meaning-explained/