That Sinking Feeling (1980)

"There's got to be more to life than committing suicide."

Ronnie, Wal, Andy and Vic are four bored, unemployed teens in dreary, rainy Glasgow. Ronnie comes up with a great idea. He has noticed that stainless steel sinks are worth a lot of money and comes up with a complicated scheme: to steal sinks from a warehouse dressed as girls and using a stop-motion-potion.