The best dream book on the internet.
Find your dream: A-Z list:

Doppelganger

    Doppelganger in a negative sense symbolizes bad luck, danger and illness, it is a reflection of our own actions, which we most often take in the face of extreme circumstances. A dream very often shows the dreamer the consequences of his your own actions and what you really shouldn't do every day.
    your own double - the anger you choke will soon pass
    another person's double - refrain from inappropriate expressing negative emotions
    fighting your double - means that you will have to choose between good and evil
    killing your own double - this is a sign that you will cope effectively in an embarrassing situation
    if you cannot find your double - this is a sign that you are chasing something in your life that is impossible to achieve
    chasing a double - s warning against falling into your own trap.

More dream interpretation: