Grey's Anatomy
S05E1743 min· aired 3/12/2009
I Will Follow You Into the Dark
TMDb8.4
Overview
Derek decides to quit after learning that more of his patients have died than survived; Izzie's interns make an unsettling discovery about "Patient X."
Derek decides to quit after learning that more of his patients have died than survived; Izzie's interns make an unsettling discovery about "Patient X."