The British singer-songwriter Peter Marshall is an uncomplicated singer. “I’m staring at your innocent skin, wondering how I fucked this up,” he sings on “Keep Your Eyes On The Road.” No shading there, just guilt-ridden sentiment and painful remorse. This is how Marshall operates — plaintively, without ornamentation, lyrical, musical or otherwise. His second album as Lone Wolf is a steely thing, all confession and his tremulous voice. Listen and give yourself the shakes.