It begins with a classic Sweeney-type chase, as three armed robbers and their driver follow a security van across Waterloo Bridge in London. In the Kingsway Tunnel, now known as the Strand Underpass, the security van explodes and three men meet a horrific end.
Move away now, avert your eyes from their charred bodies and focus on the women who are left to grieve their demise — the Widows.