Raeng Ngao (2012)

Poisonous Passion is similar to Raeng Ngao :
-Tragic Past
-Femal lead back to revenge
-Double identity

The only similarity is both lakorn have twin. But RN is more heavy plot than KLK as the focus is to seek revenge.

Story of a twin that pretend to be in other shoe in order to investigate and seek revenge. Both have mystery suround it and a revolve around a rich family.

Both are related.

You have to Watch the first one,to later Watch the second one.

Slap-kiss,intrigue and drama.It has it all.

When the sister commits suicide, the other sister will take revenge on the person who is responsible for her death.