Three Days (TV)

Andrew and his high school sweetheart Beth were married for about ten years but their relationship is not as great as it once was, now that Andrew is a high-powered literary agent. Beth is tragically killed on Christmas Eve while rescuing the neighbors' dog. Lionel, an angel, gives Andrew a chance to relive the last three days his wife was alive. But there's a catch, he cannot change the fate of his wife. There's only one gift he can give to save her life and he only has a very short time to figure out what that gift is.