Unashamedly
sentimental and including variations on ideas Steven Moffat has utilised before,
`Joy to the World` is the best episode featuring Ncuti Gatwa so far. It’s a three-act
story, the first frantic and light as we have come to expect for Xmas Specials,
the middle part quieter, considered and the best thing about it and then an
ending that is likely to provoke differing responses.
