[TOMT] Please help find this horror/crime movie

This is a movie I watched as a kid and I’m sure it was made back in early 2000s to probably 2013/14
Basically what I remember from it: There is this couple that throw a gathering after they get married and invite some of their friends over. The guests all give up their phones to just enjoy the weekend with the young couple or whatever.
But what happens is that the ex of the bride breaks into that house to get revenge. He dresses exactly like the groom and as the guests are all panicking because of the intrusion, the bride ends of accidentally killing her own husband cause it was dark and she mistook him for the murderer aka her ex.
After that first kill, they were all trapped in that house with this murderer and he starts demanding them to play games in which kinda like squid game all of them end up dead one by one. The only surviver who rans away is a girl and I remember in the last scene when she gets on a plane or whatever, she gets a text from the murderer.
I tried to describe all I could remember but I watched it back in i guess2012 and still couldn’t find it anywhere.