You would need a morphing plugin for your software. Most editing software does not include a morphing effect so it has to be purchased from a 3rd party. Most 3rd party plugins are expensive, especially the good ones like morphing. Once you have the plugin, morphing can be a little time consuming and tedious if you want it to look good.
There are really cheap jerry rigging techniques you could use, but they are not that easy and will look like crap.
(eg. Taking two layers of the same video and using a garbage matte to outline the face in the top layer. You can than dissolve the top layer (the outlined face) into another piece of video with a different face. This is not a morph, but it may work for your purposes.