I didn't read till the latest chapter herd so I'm not sure where they left off but SPOILER
Silas "lawyer" is the real killer! And he's also older brother, they were born both psychopaths so his older brother kinda likes sending Silas to the edge and see him being the one getting violence,
here he tried to kill Silas and frame it as an accident to inherit the family's company but instead he jst lost his memories so he decided to make Silas into a killer by picking out his victims and since he's sure Silas is going to kill he decided to kill a few victims himself and put it on Silas name, but since his first victim aka the fmc didn't die he didn't feel the rush of killing and didn't kill,
Instead after getting sick and fmc didn't run away but took care of him he started to feel clingyier
later on Silas older brother does lure fmc out by saying they have to stop Silas from killing (she believed him since Silas left early after sex and since hse loves him at that point she was sure to help) but Silas actually left to collect evidence that he WASN'T the killer to clear his name.
Anyway Silas older brother does try to kill fmc but since she heals herself last second she does survive in the hospital without scars and by then Silas is in prison for attempting to murder her, I for what happened here but it does get resolved and Silas real parents come calling him asher(aka his real name) and turns out the dad is also a physcopath omfg anyway they make a public apology and Silas didn't inherit the company since he asked not to, wanting to live a simple life with fmc, they go shopping after awhile and after meeting someone who knows who fmc possessed he gets jealous and buys a bunch of jewelry and saying they'll get married for real, she laughs and ask for a real proposal with a proper wedding they fuck in the car but it's cute since he says this time I won't run before the wedding the enddd<33
Her possession dosent get resolved except one time Silas asks her for her REAL name after sex not her fake name or the one in her ID since he kinda figured out the person he's with isn't her, she says her real name but he dosent figure out whee it's from since it dosent sound Chinese nor Japanese even though it's Asian, and that's kinda it
https://cherrymist.cafe/chapter/killer-wife-prologue
That's the proplogue and the next chap is the first ;3

I'm so pissed this is one of my fav novels ever and I jst found out this is it's new manhwa adaptation but they butchered everything so bad omfg