The crime drama concludes with nurse Amy Loughren cooperating with detectives to expose her friend and serial killer Charlie Cullen. After realizing Charlie has been murdering patients, Amy agrees to wear a wire and extract a confession from him. Charlie admits to intentionally administering lethal insulin doses, driven by a warped desire to end suffering. He is arrested and sentenced to multiple life terms, while Amy struggles with the emotional turmoil of their friendship even as she finds closure doing the right thing. The ending provides some justice as Charlie is finally stopped, but highlights Amy’s inner conflict and moral sacrifice bringing a killer she cared for to justice. Her courage and integrity ultimately saved countless lives while halting Charlie’s ability to keep using nursing as a sinister cover. The conclusion offers a somber, thoughtful portrayal of Amy’s selfless heroism in unveiling the truth despite personal anguish. By putting her principles first, Amy embodies the noble ideals of nursing while finding some redemption for Charlie’s victims and their families. Her bravery in the face of evil remains long after the credits roll.