Meet the fabulously dysfunctional Gallagher family. Dad's a drunk, Mom split long ago, eldest daughter Fiona tries to hold the family together. Eldest son Philip (Lip) trades his physics tutoring skills for sexual favors from neighborhood girls. Middle son Ian is gay. Youngest daughter Debbie is stealing money from her UNICEF collection. Ten-year-old Carl is a budding sociopath and an arsonist, and toddler Liam is, well, he might actually be black, but nobody has a clue how.