Opening sequence control device of a double-leafed door, having a passive leaf folded under and an active leaf folded over in the closed position of the door, wherein it is provided that a) a carrier device is provided, which can be mounted on the passive leaf in such a way that it is arranged to be hidden in the upper and/or lower horizontal rebate space of the door in the closed position of the door and, during the opening movement of the passive leaf, it is arranged in a cantilevered manner from the passive leaf in such a way that, together with the active leaf in abutment, it carries the active leaf with it out of the closed position in the opening direction, b) the carrier device has two arms connected to each other via a hinge device, wherein the one arm is formed as a fixing arm fixed on the passive leaf via a fixing device and the other arm as a stop arm that can be brought into abutment with the active leaf when opening and closing, wherein, in the abutment position with the active leaf, the stop arm adopts a first pivoting position projecting from the passive leaf when opening and, when closing, if the passive leaf passes the active leaf, adopts a second pivoting position; c) the fixing arm and the stop arm are connected via a return spring in such a way that the return spring returns the stop arm from the second pivoting position into the first pivoting position; d) the fixing arm can be mounted on the passive leaf in such a way that the vertical hinge axis of the hinge device is arranged outside the passive leaf shifted in parallel at a distance to or in a vertical boundary edge that is remote from the door axis and/or a vertical end face of the passive leaf that is remote from the door axis, e) a counter stop device is provided, which can be mounted on the active leaf in such a way that, in the closed position of the door, it is arranged to be hidden in the upper horizontal rebate space of the door and, during the opening movement of the passive leaf, is in abutment with the carrier device, while the passive leaf carries the active leaf along with it from the closed position in the opening direction, and the counter stop device has a free end protruding beyond a vertical boundary edge that is remote from the door axis and/or beyond an end face of the active leaf, and the counter stop device has a guidance curve that is formed in a main section substantially straight and/or in parallel to the longitudinal extension of the horizontal rebate space (1h, 2h), characterised in that an end of the guidance curve is formed to be convexly curved or bevelled in such a way that a roller arranged on a stopping end of the carrier device or on the stopping end of the stop arm is unrolled from the guidance curve if the carrier device is no longer in abutment with the counter stop device when reaching the predetermined door opening angle. a) a carrier device is provided, which can be mounted on the passive leaf in such a way that it is arranged to be hidden in the upper and/or lower horizontal rebate space of the door in the closed position of the door and, during the opening movement of the passive leaf, it is arranged in a cantilevered manner from the passive leaf in such a way that, together with the active leaf in abutment, it carries the active leaf with it out of the closed position in the opening direction, b) the carrier device has two arms connected to each other via a hinge device, wherein the one arm is formed as a fixing arm fixed on the passive leaf via a fixing device and the other arm as a stop arm that can be brought into abutment with the active leaf when opening and closing, wherein, in the abutment position with the active leaf, the stop arm adopts a first pivoting position projecting from the passive leaf when opening and, when closing, if the passive leaf passes the active leaf, adopts a second pivoting position; c) the fixing arm and the stop arm are connected via a return spring in such a way that the return spring returns the stop arm from the second pivoting position into the first pivoting position; d) the fixing arm can be mounted on the passive leaf in such a way that the vertical hinge axis of the hinge device is arranged outside the passive leaf shifted in parallel at a distance to or in a vertical boundary edge that is remote from the door axis and/or a vertical end face of the passive leaf that is remote from the door axis, e) a counter stop device is provided, which can be mounted on the active leaf in such a way that, in the closed position of the door, it is arranged to be hidden in the upper horizontal rebate space of the door and, during the opening movement of the passive leaf, is in abutment with the carrier device, while the passive leaf carries the active leaf along with it from the closed position in the opening direction, and the counter stop device has a free end protruding beyond a vertical boundary edge that is remote from the door axis and/or beyond an end face of the active leaf, and the counter stop device has a guidance curve that is formed in a main section substantially straight and/or in parallel to the longitudinal extension of the horizontal rebate space (1h, 2h), characterised in that an end of the guidance curve is formed to be convexly curved or bevelled in such a way that a roller arranged on a stopping end of the carrier device or on the stopping end of the stop arm is unrolled from the guidance curve if the carrier device is no longer in abutment with the counter stop device when reaching the predetermined door opening angle.