Device for setting a crown plug in a well head and for retrieving the crown plug from the well head; where the crown plug comprises an upper connection interface and a lower connection interface; where the device comprises: - a mandrel device having a upper end connected to a top sub device and a lower end; - an outer housing device provided radially outside the mandrel device; - a snap sleeve device downwardly protruding from the lower end of the mandrel device; - an upper plug connection device for connection to the upper connection interface of the crown plug; where the upper plug connection device comprises first finger connectors; where the upper plug connection device may be configured between a locked state and an unlocked state by relative axial displacement between the mandrel device and the outer housing device; characterized in that - a lower plug connection device for connection to the lower connection interface of the crown plug, where the lower plug connection device comprises second finger connectors provided in a lower end of the snap sleeve device; - the device comprises a locking element fixed to the lower end of the mandrel device; - an annular compartment is provided radially outside of at least parts of the locking element and radially inside a lower end section of the mandrel device; - an upper end of the snap sleeve device is provided axially displaceable in the annular compartment; - the lower plug connection device may be configured between a locked state and an unlocked state by axial displacement of the snap sleeve device in relation to the locking element, wherein connection to and disconnection from the lower connection interface of the crown plug is prevented in the locked state. - a mandrel device having a upper end connected to a top sub device and a lower end; - an outer housing device provided radially outside the mandrel device; - a snap sleeve device downwardly protruding from the lower end of the mandrel device; - an upper plug connection device for connection to the upper connection interface of the crown plug; where the upper plug connection device comprises first finger connectors; where the upper plug connection device may be configured between a locked state and an unlocked state by relative axial displacement between the mandrel device and the outer housing device; - a lower plug connection device for connection to the lower connection interface of the crown plug, where the lower plug connection device comprises second finger connectors provided in a lower end of the snap sleeve device; - the device comprises a locking element fixed to the lower end of the mandrel device; - an annular compartment is provided radially outside of at least parts of the locking element and radially inside a lower end section of the mandrel device; - an upper end of the snap sleeve device is provided axially displaceable in the annular compartment; - the lower plug connection device may be configured between a locked state and an unlocked state by axial displacement of the snap sleeve device in relation to the locking element, wherein connection to and disconnection from the lower connection interface of the crown plug is prevented in the locked state.