Tomorrow's Memory (2021)

Both have confused memories and a strong suspenseful atmosphere, and cause doubt about what is and isn't real.

Amnesia, tragic past. Intense. Thriller. Good watch. Survival. Crime coverage. Trauma. Memory. Past and present.

Similarities include:
Unreliable storytelling from the protagonist
Connection of protagonist and antagonist
Thrill and suspense
Mystery
Will make you question if what you watched is what really happened
Plot twists
Amazing acting

Both dramas are about an amnesia story where the female lead finds out she is married/the fiancé of a guy. Said guy tries to be understanding and helpful of the girl, however something seems suspicious about him. Both have very well done story twists that one does not truly see coming.

Both dramas are about husbands hiding their secrets from wives. They also include the theme of self-sacrifice for other person. However, "Recalled" doesn't focus on romance part.

I don't want to reveal which parts are similar cuz that'd be a little spoilery ;D but since I need the 100 characters, I'll say both had similar events

the moods of the stories were similar, both had two lost souls trying to survive and both had SYJ, also unrelated but both have my favorite actors ;D

both Following and Recalled are similar and unhinged, twisted and full of thrill, but they're not over nitty gritty and crazy
the acting was also great and things are never as simple as what they seem

They both have a thriller feeling and a very dark back story
His daughter was asking for help in a discreet manner yet he was clouded with the insane “salvation”.
Sang mi’s father grief that turns into an obsession cause he thought he couldn’t save his son in this world he could at least save at the other world he thought of that as a second chance to correct his mistakes to hold his world that was falling apart and his son’s death was the last straw he felt that he was the reason for his son's death and his remorse was the thing that led to his end.

- both have unreliable narrators and major plot twists
- both make you question everything you think you know
- both have hidden connections between the leads
- similar atmospheres imo