The plot of the dramas is not similar. Other than that, the production, the actors and their acting skills, and the message that wanted to be given to people and society are similar and pretty good compared to average Thai dramas. Both touch on sensitive topics and end with a powerful conclusion.
Similar concept with a dark and deep plot. Harsh criticism of today’s world. The soundtracks are similar too.
They both are dark-themed psychological thrillers. The concept of both movies is quite similar. They both give a similar after-taste. If you liked 'Forgotten' and haven't watched the Oscar-winning movie Parasite, it's highly recommended.