Go go gadget! Columbo inspects when a murder is caught on tape – but playback proves all is not as it seems

A food writer has been cooking the books, and will kill to keep it under wraps

A photographer clicks on to the perfect murder, only to be undone by his own ‘negative reaction’

A killer with a short fuse – and an exploding cigar box – must watch his plans go up in smoke

Pack-a-mac policeman Columbo takes on a killer conductor who’s been playing away from home

A successful crime writer (Ruth Gordon) has a motive for murder, but her victim isn’t going down without a fight