Harold Finch meets John Reese and tells him that he should protect the teenager Theresa Whitaker. However, they go to the cemetery and Finch shows her tombstone and questions whether the machine has worked properly. They decide to investigate Theresa's death and Reese asks her file case to Detective Lionel Fusco. Soon he learns that her family was killed by a hitman at the harbor, but Theresa's body was never found. Meanwhile Finch poses of insurance agent and learns from Theresa's aunt, Elizabeth, that an empty casket was buried in her grave. Finch and Reese conclude that Theresa is alive and in danger due to a business of her father Grant and her uncle Derek with dangerous people.
"Ghosts" is the second episode of "Person of Interest" with an intriguing story. There is also flashbacks of how Finch and his partner created the machine and where Finch presently works. The plot is full of action and well-resolved. My vote is eight.
Title (Brazil): "Ghosts"
Note: On 03 February 2024, I saw this episode again.