A wedding goes awry and the morning after, friends and foes need to piece together the puzzle of the night before

Alex and Sam reconnect after a chance encounter. They imagine a fantasy life as a married couple and abandon all their responsibilities to be together. However, reality soon comes knocking.

When a man returns from a trip unwittingly harboring a new breed of arachnid, the people in an apartment block are quarantined and left to fend for themselves against a plague of venomous spiders.