A refrigerator comprising: a compressor configured to compress a refrigerant; a condenser configured to condense the refrigerant; a first evaporator that is configured to evaporate the refrigerant condensed by the condenser, the evaporated refrigerant being configured to cool a refrigerating compartment ; a second evaporator that is configured to evaporate the refrigerant condensed by the condenser, the evaporated refrigerant being configured to cool a freezing compartment ; a first heat exchanger coupled to the first evaporator ; a refrigerating-compartment expansion device that is coupled to the first heat exchanger and that is configured to expand the refrigerant and provide the expanded refrigerant to the first heat exchanger ; a second heat exchanger coupled to the second evaporator ; and a freezing-compartment expansion device that is coupled to the second heat exchanger and that is configured to expand the refrigerant and provide the expanded refrigerant to the second heat exchanger , wherein the first heat exchanger is configured to cool the second heat exchanger , the compressor includes a first compressor and a second compressor , the second compressor being configured to compress the refrigerant evaporated by the second evaporator , the first compressor being configured to compress the refrigerant evaporated by the first evaporator and the refrigerant compressed by the second compressor , characterized in that the freezing-compartment expansion device includes a first expansion device coupled to an inlet side of the second heat exchanger , and a second expansion device coupled to an outlet side of the second heat exchanger , and the second heat exchanger is provided between the first and second expansion devices , to allow the refrigerant decompressed by the first expansion device to be cooled by the second heat exchanger and to be decompressed by the second expansion device . a compressor configured to compress a refrigerant; a condenser configured to condense the refrigerant; a first evaporator that is configured to evaporate the refrigerant condensed by the condenser, the evaporated refrigerant being configured to cool a refrigerating compartment ; a second evaporator that is configured to evaporate the refrigerant condensed by the condenser, the evaporated refrigerant being configured to cool a freezing compartment ; a first heat exchanger coupled to the first evaporator ; a refrigerating-compartment expansion device that is coupled to the first heat exchanger and that is configured to expand the refrigerant and provide the expanded refrigerant to the first heat exchanger ; a second heat exchanger coupled to the second evaporator ; and a freezing-compartment expansion device that is coupled to the second heat exchanger and that is configured to expand the refrigerant and provide the expanded refrigerant to the second heat exchanger , wherein the first heat exchanger is configured to cool the second heat exchanger , the compressor includes a first compressor and a second compressor , the second compressor being configured to compress the refrigerant evaporated by the second evaporator , the first compressor being configured to compress the refrigerant evaporated by the first evaporator and the refrigerant compressed by the second compressor , characterized in that the freezing-compartment expansion device includes a first expansion device coupled to an inlet side of the second heat exchanger , and a second expansion device coupled to an outlet side of the second heat exchanger , and the second heat exchanger is provided between the first and second expansion devices , to allow the refrigerant decompressed by the first expansion device to be cooled by the second heat exchanger and to be decompressed by the second expansion device . <EOS>