Are You Afraid of the Dark?

S05:E11 - The Tale of the Night Shift

A series of strange event occur over one night at United Hospital. People suddenly go missing, blood bags are shredded by some kind of strange animal; the hospital staff starts to act very strangely. Something's up and Colin and Amanda unite to solve a mystery. Trouble is all the indications seem to point to a strange coffin that has appeared in the hospital morgue.