T he first 10 minutes of Nemesis kick things off with a bang. A group of masked robbers go to town on a fundraising gala and rob the gang of rich men playing poker in a backroom. As money changes hands and guns are raised, their accomplice provides the perfect alibi by pretending to have sex with the crew’s leader in an upstairs room. This opening act is everything a crime thriller should be: tense, witty, action-packed. It’s just a pity that the rest of the show fails to maintain this strong start. The brainchild of Courtney A. Kemp and Tani Marole, Nemesis ’ shady cast of characters are at home on the crime-ridden streets of Los Angeles. By night, Coltrane Wilder (Y’lan Noel) is the mastermind behind the fundraising gala robbery, as well as several other high-profile thefts. By day though, he’s a well-respected member of the community earning decent money as a property mogul. Hunting him down is Detective Isaiah Stiles (Matthew Law, fresh from playing O’Shon in Abbott Elementary ).…