A reversible-clutch mortice lock comprising: - a central follower responsible for actuating a latch, the central follower comprising a central hole and two lateral housings, - a first lateral follower, comprising a peripheral opening, a central quadrangular hole, two through holes and at least one first cylindrical projection around the central quadrangular hole, wherein the first cylindrical projection of the first lateral follower is introduced into the central hole of the central follower, - a second lateral follower, comprising a peripheral opening, central quadrangular hole, two through holes and at least one first cylindrical projection around the central quadrangular hole, wherein the first cylindrical projection of the second lateral follower is inserted into the central hole of the central follower on a side opposite the first lateral follower, - a platen located in the central hole of the central follower between the two lateral followers (9, 10), such that the platen divides the central hole of the central follower into two halves separated by the platen, and such that the platen limits the central hole to two curved holes, - a pin comprising a web and two flanges located in the lateral housings of the central follower, - two points inserted into springs, the points being fastened at the ends of the flanges of the pin, and configured to be located in the lateral housings of the central follower, and - a cam comprising a shaft, a protrusion, a hook-shaped end configured to be attached to the web of the pin and another articulated end, the cam being able to rotate around the articulated end; wherein, by rotating the cam around the articulated end, the hook-shaped end of the cam attached to the web of the pin is configured to push said pin towards the inside of the central follower, such that the flanges of the pin are configured to push the points until each point is introduced into the peripheral opening of the lateral followers (9, 10). - a central follower responsible for actuating a latch, the central follower comprising a central hole and two lateral housings, - a first lateral follower, comprising a peripheral opening, a central quadrangular hole, two through holes and at least one first cylindrical projection around the central quadrangular hole, wherein the first cylindrical projection of the first lateral follower is introduced into the central hole of the central follower, - a second lateral follower, comprising a peripheral opening, central quadrangular hole, two through holes and at least one first cylindrical projection around the central quadrangular hole, wherein the first cylindrical projection of the second lateral follower is inserted into the central hole of the central follower on a side opposite the first lateral follower, - a platen located in the central hole of the central follower between the two lateral followers (9, 10), such that the platen divides the central hole of the central follower into two halves separated by the platen, and such that the platen limits the central hole to two curved holes, - a pin comprising a web and two flanges located in the lateral housings of the central follower, - two points inserted into springs, the points being fastened at the ends of the flanges of the pin, and configured to be located in the lateral housings of the central follower, and - a cam comprising a shaft, a protrusion, a hook-shaped end configured to be attached to the web of the pin and another articulated end, the cam being able to rotate around the articulated end;