“Blowtorch” (** out of four) was a fizzled NYC underworld crime melodrama about a struggling single mother (Lois Robbins) whose drug-dealing son is murdered. When the NYPD detective (William Baldwin) on the case isn’t able to come up with any answers, she takes the law into her own hands and begins investigating her son’s cohorts and the main henchman he worked for (Armand Assante). What starts out as a gritty crime movie about living in the city and struggling to survive becomes heavy-handed and awfully implausible. By the end, it’s hard to believe anything or care about the outcome. Disappointing directorial debut for Kevin Breslin who has been an actor in various New York dramas over the years.