In
post-Cold
War
Warsaw,
American
businesswoman
Sarah
Leonard
oversees
the
construction
of
a
new
hotel.
After
a
headless
body
is
discovered
in
a
tunnel
near
the
construction
site,
Sarah
hears
the
cries
of
a
child.
Sarah
and
Komisarz
Stefan
Rej
search
for
the
child
through
an
underground
maze
used
by
the
Polish
Resistance
and
uncover
the
legend
of
the
Tunnel
Child--a
murderous
creature
with
the
face
of
an
angel
created
by
the
Nazis.