Scream for Vengeance! (1980)

Four hoodlums break into a jeweller's house and brutally murder him, his wife and daughter. On the run they kidnap Jenny, a Senator's grand daughter and her boyfriend, but discover that the two will not be taken easily. In the melee that follows, the gang are blown away one by one, until the final vengeful confrontation between Jenny and the remaining gang member.

Scream for Vengeance! was on the Section 3 Nasties List and was liable for seizure and forfeiture by the police. No UK re-release.