Detective Supt. Colin Thane of the Scottish Crime Squad returns--in another competent, hard-working, rather heavy-handed story. The timely subject-matter is video/film piracy: pirate tapes of a brand-new blockbuster film are found in the effects of young motorcyclist Ted Douglas, who is gunned down when he happens to get in the way of fleeing bank robbers. Soon, then, Thane is heading a high-gear investigation of the tape-piracy racket, with the trail leading to Falcon Services, a delivery firm; moreover, it just so happens that the company is run by the Super's old flame Alexis Garrison, along with her nervous, electronic-whiz brother-in-law. And there's a nasty murder ahead, plus a near-fatal attack on Thane's right-hand man and some good forensic science, before the scenic finale: a burly confrontation on the edge of a desolate bay in Scotland's north. Solid craft, no sparkle--with the meticulous police-procedure sometimes slowing the pace to a plod.