The Man Who Knocked Twice (слэш)

Months before the world needs him again, Bucky Barnes answers a knock at his door — and finds Steve Rogers standing there, young again, soaked in rain, and not supposed to exist. The last time Bucky saw him, Steve was an old man. Now he’s back, haunted, and not quite whole. And Bucky isn’t sure if this is a second chance… or a ghost wearing the face of the man he once loved.