This game may contain content not appropriate for all ages,
or may not be appropriate for viewing at work.

The developers describe the content like this:

“Please Knock on My Door contains depictions of depression, social anxiety, and suicidal ideation. This game may not be appropriate for players who are currently suffering from these issues, or who may be triggered by their depictions.”

By clicking the “View Page” button below you affirm that you are at least eighteen years old.