Piper informs Mishti and Det Shaw of the confession letter Cassius has mailed to the police, but its soon clear the letter never arrived, so now Cassius has to talk. But when he learns Elissa has been arrested as an accessory, Cassius refuses to say anything, trying to bargain for a deal to save his mum. But the detective refuses the offer, leaving Piper and the Brennans despairing after fi... (thetvdb.com)