Mikkel er en 21 årig dreng, som har haft et liv der var lidt atypisk. Dette er hans liv, hans historie, hans minder.

David is a boy that just woke up in Slender Man's Castle with no memory, just his name. David has to collect eight letters that are hidden in the castle while he is being hunted down by many monsters. Will David escape Slender's castle or will he fall like all of Slender Man's victims.