If you’re looking for your next creepy watch after the smartschoolboy9 documentary, we’ve got you covered – a YouTuber who’s collaborated with the creator has just dropped a new video on an eerie unsolved mystery. Nick Crowley’s mini-doc on the smartschoolboy9 rabbit hole arrived last month, centering on the case of a potentially dangerous man who runs a series of social media accounts pretending to be or dressing up as a child. It’s since been viewed nearly 10 million times, leading to speculation about whether smartschoolboy9 will ever be arrested .

Some have been giving Crowley’s other deep dives a view, including the horrifying Pipergate doc . But he’s far from the only creator making creepy YouTube documentaries . In fact, Nexpo has amassed 3.

43 million subscribers with his investigations into “mysteriously spooky” true stories. He’s collaborated for videos with Crowley in the past, the latest being his own take on the smartschoolboy9 saga, titled ‘Instagram’s Darkest Rabbit Hole (ft. Nick Crowley)’.

Over the weekend, Nexpo shared a new mini-doc on what is said to be “Japan’s strangest unsolved mystery,” and it’s well worth a view if you enjoy this type of content. Also known as the SOS incident, the case began in 1989 at Mount Asahidake in Hokkaido, Japan. Following a severe storm in the area, local authorities sent out helicopters searching for two Tokyo hikers who went missing.

Along the way, police discovered a giant SOS sign made .