Sex, nudity nor sexual jokes or themes or isn't involved.

Doesn't contain anything related.

While animated, the violence, blood and gore is explicit and extremely graphic.

In a lot of scenes, Bon has blood all over him from his victims.

there are scenes that contain a lot of blood, or even explicit gore. The Walten Files is itself an extremely violent series.

It should be noted that while the series is animated and most scary faces are photoshopped, the violence and gore is extremely detailed to an uncanny extent, making it hit a lot harder when you see it.

Episodes Relocate Project and beyond have moderate to strong profanity.

words like f*ck, dumb*ss, sh*t, and some milder profanities are said.

In episode 4, Jack can clearly be heard saying "I'll fucking kill you" in a threatening manner.

in "Lucky You", It is revealed that Sophie has been taking pills due to the medication she has.

Alcohol and Drugs are heavy topics in this series.

Various closeups of disturbing, unnatural and violent images and loud sounds.

The Reversed and distorted music can make the series have more of a terrifying theme to it

Overall the series is very creepy and not for everyone but it does have a very good message behind it.

The robots move (dance almost) in unnatural and frightening ways.

It says it right at the genre of the series (which is ARG, aka Alternate Reality Game). If you do not know what ARG's are, it is a series that you need to solve the plot and lore by yourself. ARG's are usually scary, but some aren't. If you really want to see this, beware from loud jumpscares, disturbing imagery, frightening secrets and of course, bodies being stuffed into animatronics.

If this series were to be rated by the MPA it would be rated R for strong disturbing violent content, gore/grisly images throughout, language and some drug material.