For me, it has to be “Old Boy” which is originally a Korean movie but the US version sucks so much that it remains incomparable. Another contender is “The Ring” again a Japanese movie (the ending differs between both versions, as the original one refers to the protagonist’s father sacrificing himself but the remake states that the cursed tape is being sent to someone else, passing the omen towards another stranger).
I remember watching Cordon which is a Belgian TV series that aired in 2014 but there’s also an American remake under another name containment, the only thing they have in common are that the character’s names are exactly the same with differences being that their settings take place else where respective of their regions.