Plot

While looking into a mysterious murder in Illinois, Sam and Dean come across Meg, an old 'friend' of Sam's, who may be far worse than they ever thought possible and who plans to use the brothers as bait to trap their father, John.

Dean and Sam are investigating a mysterious murder in Chicago and discover that Meg is responsible for it. However, when they try to catch her, Meg unleashes shadow spirits on them.—Anonymous

In Chicago, the waitress Meredith Mcdonell is pursued by a shadow in a alley, and once locked at home, she is slashed and her heart is stolen. Dean and Sam move to Chicago to investigate two similar murder cases, and while in the bar where Meredith worked, Sam meets Meg. Sam does not believe in serendipity, and follows Meg to an old warehouse where she worships a demonic god. Meanwhile, Dean leaves a message to his father asking for help to fight against the shadow fiend. When John Winchester meets his sons, they realize that they have been ambushed by evil forces.—Claudio Carvalho, Rio de Janeiro, Brazil