Deryl Hayes

When an unseen force commits several murders wherever a young woman is present, Mulder suspects that it is the spirit of the woman's former boss who was believed to have committed suicide, but was actually murdered, and he is protecting her.

Mulder disobeys orders and heads to an abandoned SETI site in Puerto Rico, which has inexplicably reactivated itself and could provide proof of contact with extra-terrestrial life.

After a suicide attempt and multiple murders at a military hospital, Mulder and Scully meet a quadruple amputee who has gained the power of astral projection, and takes out his personal frustrations on his commanding officers.