Gotham by Midnight (2014) #3A

Written by Ray Fawkes. Art and Cover by Ben Templesmith. There's a dark secret in Gotham General Hospital - a supernatural menace that could infect the whole city! But Detective Lisa Drake of the Midnight Shift has a dark secret of her own…and when this new threat brings it out, the only thing Jim Corrigan can do is get out of the way!