Medical researcher Frank, his fiancee Zoe and their team have achieved the impossible: they have found a way to revive the dead. After a successful, but unsanctioned, experiment on a lifeless animal, they are ready to make their work public. However, when their dean learns what they've done, he shuts them down. Zoe is killed during an attempt to recreate the experiment, leading Frank to test the process on her. Zoe is revived -- but something evil is within her.
About 47 minutes in, main female character approaches her fiancèe and says 'I think something's wrong'. Proceeds to 'vomit' a small amount of white fluid. Not horribly graphic, no horrendous sounds but quite sudden, look away for about 10 seconds.
A woman has nightmares from a traumatic experience she had as a child that involves an apartment building burning down and you see charred hands reach from under a door