Damien Lewis and Paul Giamatti are strong, individually, in this new series, which basically sets them up as dogged adversaries on Wall Street – one an opportunistic tycoon, the other a vengeful government prosecutor. Yet don’t underestimate the woman between these two men: Maggie Siff, who’s more than tough enough to stand next to them. Or, when she’s playing S&M sex games, on top of them.