This band 'Lacuna Coil' is from the same genre as Evanescence and I'm watching this video to learn about dress code. This particular music video doesn't have a main narrative and focuses on the band performing the song. The video holds a number of Alternative/ Gothic conventions, starting with the red curtain and out of focus shot of the band, moving onto a shot of the female lead singer. Already in the first 12 seconds, the colour scheme of black and red (convention of Gothic) have been established. The dress the female vocalist is wearing is a dark black, as is her hair and her skin is extremely pale, classic costume of the gothic convention, a lot like what you would find in an Evanescence video.
The men in the band are dressed in suits with skinny ties, their shirts are untucked and their hair styles are long. This represents a clash between formality and individuality, something often seen in the Alternative music world.
The setting of the video represents the meaning of the song and as it doesn't relate to what I am trying to achieve with the video I will create, so I'll ignore that and take from this video the following things-

Dress code should represent the gothic sub-genre, Red/ Black and occasional white.
Hair Styles for men should be long or extraordinarily styled.
Hair Styles for females should be dark.
A Punk like dress code associated with Alternative (scruffy suits) could be incorporated.