Ain't Nobody Here Named Barney - S1.E16

A loony sculptor claims her grandfather wasn't buried in his grave at all. Turns out he was ("When we put them down there, they stay down", says a minor character), but there is also evidence that $4.3 million in embezzled money is -- or was -- down there too. When Pete and Mac take up the case and find the money hijacked from a computer account, they also come upon a shadowy killer who is intent on making the sculptor look crazy or dead and take them with her.