When a ruthless bank robber finds a gate to a parallel universe, any crime seems possible to escape, until the other self gets to take the blame.

I think it's a great logline and concept. I would change "other self gets". That seems a bit clumsy and confusing, enough to distract from the greatness of that story idea!

Geno Scala (sharkeatingman), judge

If he's found a parallel-universe then the question becomes how? Is he a scientist? Its a bit breaking bad, but you could say "When a scientist-turned-bankrobber finds...".

If he's a bank-robber than we can assume he is ruthless... so perhaps there's a way of getting more shading to his character with this adjective?