This is episode 15 of 45 of Blood Moon Lover. Play it below, then continue straight into the next episode — the whole season is free and needs no account.
Opening of the season — the setup and the first turn.
Half-werewolf Carl brings his human wife Eve to an ancient castle for their honeymoon, where he and his vampire brother Miles accidentally swap souls. Their mother Vivian schemes, revealing that only a child carrying all three bloodlines can restore the brothers' souls—then tries to kill Eve.