The episode itself was was worthy of an 8 but the new character Lucy Knight played by Kellie Martin brought the watchability factor to an all time low. The number of actresses that could have played Lucy Knight far exceeds the number of episodes the Kellie Martin appeared in. This is not meant to be a bash Kellie Martin review but from her first appearance on the show she never looked or portrayed the role of a med student, all I could see was an incompetent candy striper. Being a T. V. series I was glad to see her go no matter what method was used. ( a gruesome murder was not necessary but it was effective for viewer shock value).