We explore the probable chemical signature of planet formation in the remarkable binary system HD 80606/7. The star HD 80606 hosts a giant planet with 4 MJup detected by both transit and radial velocity techniques. We study condensation temperature Tc trends of volatile and refractory element abundances to determine whether there is a depletion of refractories that could be related to the terrestrial planet formation. Finally, we speculate about a possible planet around the star HD 80607.