Movies or drama about family relationships

Hi and welcome! My top recommendation for this type of drama is Go Ahead, which is a 2020 Chinese drama. It is essentially about a family that is created from 2 households: one is a divorced dad who is a cop and raises his son. The other is a widowed dad who has his own noodle shop and is raising both his biologica daughter in addition to his adopted son (from a woman he did not successfully match-make with). The dads work together (not romantically) to raise the three kids, but each of them have their own issues. I also like that this spans from childhood, adolescence/high school, to adulthood. It is top rated for a reason :)

Movie recs: 

So for family movies that have some drama but nothing deadly/crime like:
Lightning up the stars -chinese movie  ->  he is a funeral home owner, she is a little girl that wants her dead grandma back and voila.
Bunny Drop - Japanese movie -> nearly the same story as lighting up the stars
Making Family - koren/chinese movie -> little boy looks for his father
Like Father, Like Son - Japanese movie -> has quite a bit of angst. 2 Families discover their sons have been switched at birth.
Present Perfect - Thai movie -> an aunt gets her niece for a few days. The ending is quite surprising. Its more what you look for in terms of happy to drama
Shoplifters - Japanese movie -> family of pseudo criminals live together tillll .....well its more what you look for

I can speak - korean movie -> this probably more what you meant. It absolutely became something I id not expect and went from happy to serious
Forgotten - korean movie -> eldest son is abducted, returns but wello. drama unfolds. it has actually all but the happy part that you look for and is one I highly highly recommend
Home Sweet Home - Chinese movie -> mysterious person starts to live with a family. It fits more what you look for
Hope - korean movie -> this one is utterly devastating to watch. Its about a family that goes from one day to the next through something utterly tragic and now they have to move on with it 

Angst movies with surprising end:
Blood and Ties - korean movie -> daughter finds a secret out from her fathers.
Old Boy  - korean movie -> wello anything I say I a spoiler here.
Nobody knows - Japanese movie - > a mother leaves her 4 kids alone to fend for themselves. its the story of those 4.
Drama Stage 3: Everyone is there - korean movie -> the twin sister returns when her sister is bullied. the ending is very very surprising.
My Little Baby Jaya - korean movie -> his daughter gets murdered and he is out for revenge
Recalled - korean movie -> she has amnesia, wakes up  with a husband she doesn't know. Its good but angst and defo not an ending I had expected.
The Uncle - korean movie -> now this has a ton of angst and a ton of mess-up ness. It tells the story of a girl that cannot walk and her uncle .  It is an arthouse movie so seriously be warned. it is unforgettable if you like arthouse