An escaped convict seems to have gained the ability to pass through solid objects as well as people. Mulder and Scully must find the deadly convict before he can get to his ex-girlfriend.
An escaped convict, who seems to have gained the ability to pass through solid objects as well as people, which kills them, appears to be looking for the $90,000 he hid somewhere after the bank robbery for which he was imprisoned. In protecting his ex-girlfriend Mulder discover the deadly convict is searching for his son.—Muldernscully