Mansquito

Mansquito, also known as Mosquitoman, is a 2005 Syfy Pictures original film, directed by Tibor Takcs, and stars Corin Nemec, Musetta Vander and Matt Jordon. It shares many similarities with the 1986 adaptation of The Fly, and was conceived by Ray Cannella, Manager of Program Acquisition for the Syfy Channel. He and other two colleagues began producing films for the channel feeling that they could do better than the films they bought from independent producers.

A convict named Ray Erikson Matt Jordan joins Dr. Allens program in exchange for his lifelong prison sentence. He takes a hostage and convinces Dr. Allen to open the door to the experiment room. The security guards open fire and cause an explosion that showers Ray and Dr. Allen with the chemicals and the genetically altered mosquitoes. Ray manages to flee the scene.He begins to transform into the titular monster, a deformed chimera, half man, half squito, yet he manages to find his way to his exgirlfriends apartment, where the process continues. When the ex comes home, she finds it in ruins. She and Ray have a short, anxious conversation before Rays transformation is complete and he kills her. ........

Source: Wikipedia