Cat's Cradle (2020)

Both are directed by the same talented director (xin shuang); they are both modern crime thrillers that explore different social themes ie family dynamics, human behaviour, 'good' people making bad decisions, the impacts of those decisions etc. Both are superb productions that should be watched by more people!

Both dramas deal with kids and with how they are not always so innocent. Both dramas are psychologically violent and they make a good use of the plot twists to portray that violence. Both dramas also pay attention to the social and family situations of the kids and how it plays a part in shaping who they are. And finally, both dramas are unpredictable and features complex characters that are far from being the typical heroes.

What is the trigger for a person to change their persona and become the next criminal? this question is debated in both dramas. Both are very well developed crime/thrillers, with controversial topics. Both show that the innocent children must not always be innocent and both show psychopathic behavior to the extreme.
There is a high chance that if you like one drama, that you will enjoy the other as well.

Both are short crime dramas involving teens, with blackmail, broken families, and all these elements.
Both start with A crime reveal that leads to a butterfly effect and end up ruining everyone lives.

Extraordinary!
A fascinating thriller, masterly presented which grabs you from the first moment till the last breath. Well beyond mere entertainment, it’s art.
An astonishing and captivating plot, which surprises even on the cadence by which the story is unfolded.
Bewildering performances by an extraordinary team of actors.
An astonishing opportunity to bring a mature reflection on violence, social fragmentation and death penalty.
A precious moment on the brightness of solidarity, the value of courage and redemption.
It is definitely a must see.

The main leads are very similar. They both have a very dark theme and are heavy watches, addictive and will make you want to binge-watch. Strangers from Hell has an alternate title that I've always felt suits the show much better which is 'Hell is other people'. These are both psychological and play on the 'seemingly innocent quiet kid/guy' trope who is 'not as he seems'. Strangers from hell is more 'current' for the time place it is set in. There are cats in both shows!

Similarities:
-Both have dark themes (TBK being darker)
-Both have main leads who are not who they may first appear to be (though the two are very contrasting individuals once we see who they are)
-Both have dark themes with murder and cruelty (being vague as it's been a while since I watched Beyond Evil)
-Both have AMAZING cinematography that really bumps the show up from being an amazing show to being pure masterpieces in their own regards.
-Overall there is more focus on male characters with main leads being men
-There is little to no romance in either of the shows
-You can interpret 2 characters within each show as being very similar/different sides of the same coin to each other.

Both of them were good thriller dramas.
Though they start slow at the beginning later the story starts to unfold at a good pace.

In both dramas someone commits a crime and to cover up that he makes even more mistakes.

If you liked The Bad kids and then there's a high chance that you would also like That disappearing child!

The overall vibe and setting is similar. The way the story unwinds and how grounded and realistic the characters are is also very similar.

NOT the same story but same dark vibe.
Psychologic crime thriller
Small town feel
Secrets, lies, betrayal, nothing is what it seems.

From same series and writer following a character named Yan Liang.
The Bad Kids is Yan Liang's story when he was teenager. Whereas, Burning Ice is about a case that detective Yan Liang investigated on.

Seems part of the same series by the author, following the character Yan Liang after he became an experienced detective.

A couple of the same actors take part in both dramas. Some are even in very similar roles. Both dramas are part of the Light On series and both deal around characters that you never know if they are good or evil. Both are complex crime dramas with stellar acting and production. You will have a very similar feeling watching both.

Both dramas deal around a group of children that get involved in a murder case. In both dramas especially one kid becomes a suspect and faces doubt by his surrounding. Both are very similar in terms of the children and cases that they face

Not really that related in terms of plot, but they are both dramas are iQiyi originals that deal with mystery, crime and murder, but they both have the same feel and atmosphere as well the same level of suspense and not knowing who you can trust. Also comparable in terms of quality.