Neung Nai Suang is similar to Padiwarada :
-same hisotrical period 1950-1960
-Orphan femal lead
-hate to love relationship
-arranged marriage

Song Naree is similar to Fai Rissaya :
-Twin sisters
-One good girl, one evil girl
-Bad end for devil sister

Sud Sai Pan is similar to Fai Rissaya :
-twin daughters theme
-one good one bad
-both actress born in 1971

Por Pla Lai is similar to Pla Lhai Paai Daeng :
-same story : playboy ML, ML father-in-law
-women tries to catch up with their husband cheats

Lah is similar to The Fallen Leaf because :
-Psychological pain from FL lead
-Transformation identity
-Revenge on the culprits

Bad Romeo is similar to Yah Leum Chan :
-Teenage love separation through letter
-ML and FL meet again many years later
-ML revenge on FL

Bad Romeo is similar to Sai Roong because :
-teenage love story
-dramatic ML and FL separation through a misunderstood letter
-Broken hearted ML and FL
-Tragic events happen on ML
-FL thought ML died and does not forgives herself
-ML becomes strong man, comes back to take revenge on FL

Sapai Pateevat is similar to Sapai Jao Sua because the daughter-in-law / parent-in-law comic relationship.

Sai Roong is similar to Ya Leum Chan :
-Same FL
-Romance during teenage years
-Forced break up letter from FL
-Revenge from ML many years later with new identity

Kleun Cheewit is similar to Sai Roong because :
-FL is alcohoolic actress/model with harmful past
-FL hearts ML by killing is lover / sending a rupture letter
-ML takes revenge on FL
=> MELODRAMATIC !!!

Wan Sawart is extremely similar to Klin Kasalorng :
-In the past life, 2 identical twin sisters loving the same man
-The evil twin steals the man from the good twin and killed her
-The ML and evil twin reincarnates in the present life
-The good twin is still a gost to revenge the bad twin

Hong Hern is similar to Ga Gub Hong because the ML chooses the poor FL instead of the spoiled devil FL.